You have a very unique version of reality. Hard to bat against that.
If I am to defend Carter, I will surely strike out. I have always thought that Carter was weak. But, if you recall, and you can look it up, when the rubber met the road, Carter capitulated and ended up caving in to the Republican demand to increase military spending. Like I said. Carter was weak.
IMO, Carter's fail was that, in the first place, the plan was hair-brained to begin with. The pressure upon him to take some kind of action crushed him. As they say, "Nobel concept. ****ty execution." It was not properly thought out. (I couldn't imagine Obama EVER folding to pressure and not think something through before taking action but I digress.) The military brains advising Carter was not up to the task. Can you imagine SpaceEx having a mission failure because they did not anticipate helicopter propellers would kick up sand and dust? Carter's plan was just plain stupid. And he owns it.
Trump's attempt was a fail too. You can think otherwise if you like. But Trump owns it. (sorry......)
On another note, and this is just a personal opinion without links or sources. I know you didn't intend to, but I found your post to be somewhat offensive, personally. Carter took office on Jan. 20, 1977. The rescue attempt happened in April 1980, 3 years later, if my aging mind remembers correctly.
During this time, I was in the service of our great nation. I was in the presence of hundreds of thousands of other people doing the same. We were well trained. We were well fed. We were well exercised. We had the latest, greatest, war toys the world had ever known and we knew how to use them. And they were WELL maintained. WE were well maintained. We were dedicated too. Striving to always be the best of the best. Our government was spending more money on us than any other government in the world was spending on their's.
For you to say we had rotted is not only a bald faced lie, it is insulting. To me and to all I served with. I was there.