Yeah, I got shit from the left and even some of the right for defending Romney. I mean, I strongly disliked his campaign and disagreed with him about almost everything, but I thought that if I agreed with him, I'd think he was likely to be a great president, and I thought he was extremely well-qualified.
Something I think people don't really appreciate is that there is very little difference among primaries in terms of goals. Webb, Gabbard, Clinton, Bernie, etc. would all try to do the same kinds of things (and have the same allies and opponents, etc.). The difference is how well they'd execute. LBJ and FDR were seen by the left of their time as corporate sell-outs, too. They're remembered fondly now because they got the job done.