No, they are not both responsible. The woman can kill the child and remove responsibility; the man has no such option.
As the old saying goes, "Ignorance of the law is no excuse for breaking it."
There is a calculated risk by both men and women that if they have sex, protected or not, there is always the possibility of a pregnancy.
Here's the deal....like it or not. It is what it is. The law is what it is. We are a nation of laws. IF YOU DON'T LIKE like the biases or injustices created in laws related to abortion or men's lack of rights pertaining to women having a choice to abort or keep the child...and if women choose keep it...they have the right to go after the guy would help created it despite him not wanting the child...
then seek to change the laws. Organize, protest, write to your law makers, place ads, do blogs, etc. etc.
I didn't make the laws. I don't have any say over the enforcement of laws pertaining to this topic. I'm merely pointing out what they are...and the consequences of not understanding them or abiding by these laws...Unfair as they may be...they are what they are. Having said this,
MEN SHOULD CLEARLY UNDERSTAND THE FOLLOWING:
1) LIFE AIN'T FAIR...Since the law is what it is
FAIR OR NOT...men who ignore the realities of the possible consequence of impregnating a women...gets what they deserve.
1) Men clearly know prior to having sex that women have to right to abort or "MURDER AS YOU CONTEND" their baby with or without their permission.
2) Men clearly know that in today's world, in the United States of America, that many men see divorce and child custody laws biased, unfair and unjust. They may be forced to disproportionately have to provide support that isn't fair to them.
3) Men clearly know that if a baby is conceived out of wedlock that a woman who chooses keep a baby...
with or without their permission...they will be liable in the eyes of the law and in court of law , which will require them to provide support to the limit of the law.
FOLKS...like it or not...IT IS WHAT IT IS! The only way to change any of the above is change the current laws. PERIOD! In other words, THERE IS NO ANSWER EXCEPT TO USE ONE'S HEAD to think about the consequences of having sex. If you don't like them. Don't have sex.