They absolutely should, I agree, and I think many folks will email you a copy if you ask. Also, sometimes the journals have clauses when you agree to publish, like you can’t upload to your website the same version that they published, at least for 1-5 years. I still think people should do it anyway, anonymously, but I wanted to add that point about the extra legal bullshit.

It should be the objective case because it’s an object of the verb “put up”, not because it heads the phrase “whomever the dems put up”. Who/whom has to do with its role in its own phrase, not the larger sentence/clause. Contrast “I will vote for whoever wins the dem nomination.”