@ganymede I do not think Franken is in the same pool as Cosby or Trump, and I haven't seen anyone else say that in this thread. It is also true that accepting responsibility and whatever consequences come is a mark of character that I feel puts Franken well above Cosby or Trump.
That said...
He did it. He felt that this was alright to do, he did it, and his accepting responsibility did not come about until it broke as national news. He's still heavily tarnished, and I will not fault anyone for being more affected by the allegations made against Franken (as compared to, say, Trump) because he held more esteem in their eyes and therefore this comes as more of a shock. It affected me more, personally, because I had more respect for him and some of that respect was absolutely misplaced.
They don't have to be the same levels of wrongdoing for people to feel like gagging and backing away quickly from any of those who've had these stories come out.