Doesn't matter if you're a nationalist or not. If you can drop Corbyn, you might as well drop Sanders. Because ironically Corbyn hasn't lost yet on the ballot, but Sanders has.
In retrospect, Sanders wasn't the clear choice. You have no solid evidence to offer as proof that he was.
dramatis, this is a mess of a post. An absolute mess. It doesn't make any sense, from start to finish. You just know you
need disagree with me or you lose face or something, and so you have this itch to find some way to disagree with the post, such that you don't even think through what you post before you post it.
"In retrospect" means "If we got to do something again, knowing what happened the way we did it." I don't feel I should have to explain this to you, but there we go.
We know that the way we did it (selecting Clinton), the Democrats lost. We also know that that one of the biggest predictors of swapping from Obama to Trump was dislike of Clinton as a candidate, and that Sanders had far higher favourable ratings among Republicans and independents than Clinton did. So we can say: knowing what we do now, if we got to pick again (which, remember, is what "In retrospect" means) we'd be better off picking Sanders, because his strength was Clinton's critical losing weakness.
You've then tagged on something about Corbyn winning or something? I can't even work out what you're saying. It's a total mess. But okay. I'll be nice, I'll be charitable. You're saying something like: "Clinton won the real Democratic primary we held, so she must have been a better candidate!". This is low effort posting. It's pretty obvious that winning an internal party contest doesn't make you the best candidate to win a general election. Corbyn should be evidence enough of that!