By that logic, there's nothing wrong with Nazism, it's the people that call themselves Nazis that are the problem.
Since Naziism has transformed into essentially focusing around the notion of the superiority of an Aryan race and striving for that through any means necessary, Naziism transformed from what I would view as a doomed for failure and bad political ideology to an ideology focused souly on extremist views.
I think just about any ideology, political religious whatever, when taken to an extreme can be extremely dangerous. I think when the extreme becomes the norm, then that ideology could potentially transfer to a truly evil or dangerous ideology.
Naziism, under Hilter, made that transition from a simple political ideology to the extremes of that ideology being made to be common place.
Such is not the case for Islam.
The "norm" for islam is not to kill non-believers or enslave them. That is an extreme view, held by a relative minority of the religion. It is not the standard literal view of the majority.
The "Norm" for Naziism at the point where it was actually prominent in any form of way was to kill and incarcerate jews. That was not an "extreme sect" of naziism, that's what the normal day to day actions of that ideology was.
This doesn't even get to the fact you're attempting to compare a religious ideology to a political one, of which there are a number of stark differences making two comparisons far from picture perfect.
No, my personal argument?
Christianity is not evil. Evil however has been, and still to this day is, done by people in its name. Christianity does have tennents where, when taken to an extreme level, can be used to justify all sorts of things from simple bigotry to full out murder. In the hands of a charismatic leader that is able to manipulate the masses using the seeming blessing of god, great evil can be done through the name of Christianity. But I do not believe Christianity as a whole is an evil ideology.
Islam is not evil. Evil however has been, and still is to this day...in some places on a large scale...is, done by people in its name. Islam does have tennents where, when taken to an extreme level, can be used to justify all sorts of things from bigotry to full out murder. In the hands of a charismatic leader that is able to manipulate the masses using seeming blessing of god, great evil can be done through the name of Islam. But I do not believe Islam as a whole is an evil ideology.
I believe the biggest issue and difference between the two truly is coming in the worlds in which they are found in. The west was gifted in the ability for solid, continual, evolution in terms of technology, economy, culture, and politics over the year to create the society we live in now where freedom is valued (we can not say this freedom was truly steeped in christian principles for it was fleeing in part from persecution by fellow christians that caused that which went on to spur the swell of freedom in the west). It has created a far more civilized culture, in a relatively quick time period historically speaking, with greater wealth and standards of living (even the poor in this country for example would likely be well off by the standards of many middle eastern ones). We've became a culture far more willing to rationalize, one where I believe 75% plus of the population still states they're christian yet I dare say I'd put good money half of that population rarely attends church outside of an occasional visit.
Its not beneficial, for example, for a preacher whose less worried truly about religion and more about their own personal agenda and power to push for the unbelievers to be rounded up inquisition styles or heretics to be burnt or holy wars to be fought....its far more beneficial to use the words of god to sow hatred for homosexuals, liberals, white people (go reverend wright), black people or any other thing in hopes of increasing ones cash flow.
In the middle east, this is not the case. The civilization is still far less civilized, far more wild, far more segmented. The rich and powerful are at greatly opposite ends and the lowest of the low are lower than most here in the U.S. could imagine. Its a civlization where rule through power and intimidation is still likely to be a useful and logical means of attaining such power.
I fully believe if we took a Jerry Farwell and we took an Osama Bin Laden, and we left them both the same general personalities but switched them places and religions, that old Osama would be up here telling us the GAYS are the reason 9/11 happened and Old Jerry would be in a cave sending us video tapes telling us we're the great satan. Because they're the same general man cut from the same general cloth that is shaped and molded by the society, culture, and life they live in...but at the core I do not honestly think they are so truly different.
If it was Islam that was first in the west and Christianity in the east I have no honest reason to believe it wouldn't have been Islam that would've split into a multitude of sects, that would've had people trying to escape from persecution of their own religion, and wouldn't be much like Christianity is in the west now. And I wouldn't be surprised to see Christianity having followed the general path Islam has in the middle east. And we'd be looking at those savage Christians, stoning their daughters and wives for daring to actually be raped while they we then look at our country and talk about the "Fundy" Muslims with their televangilists and actually still adhering to that ridiculous amount of times to pray every day while we ignore yet another time of prayer because the game just went into over time.
Do I think there's the more things within the works of Islam that can be taken to extremes? Perhaps. They're pointed out regularly. At the same time you don't have nearly as many people scouring the bible looking for things to take out of context. Regardless though, as a whole, the religion is not focused on the extreme and is not gigantically different in generalities than Christianity. Just as I believe children are often creatures of the environment they grow up, so too do I believe religions can be.
So no. I don't think Islam is inherently evil. I believe it can be twisted to an evil thing, and I believe those that twist it to such evil are evil...but I don't believe the religion itself is inherently that.