After all, just about everybody else has a "homeland".
Really? What's the Christian homeland? What's the Muslim homeland, or the (insert any other religion)? Judaism is fairly unique for being tied to a specific place in that way. (Mecca is not the "Muslim homeland", the Vatican is not the "Christian homeland") There are a few other religions like that, but they're not popular ones nowadays. The only ones I can think of are the old Mongolian religion and some aboriginal ones, and I don't know any of their names or any details about them.
The point you make about people using anti-Zionism as cover for anti-Jewishness is often true, but in the same way this fact is also often used as cover to dismiss grievances against some of the negative actions of Zionists.
She was not a good candidate! That should have been obvious to the big money contributors, it should have obvious to the other politicians that were going to have to back her candidacy, and it should have been obvious to the party.
If you're genuinely confused about all of this: everything that you've said regarding her eligibility as candidate is a negative, you've considered none of the positive reasons why the DNC / contributors / others would consider her to be a good candidate. She checks most of the classic political boxes, in another era not so long ago she would have made a very fine candidate based on her positive qualities - enough to overcome any of the negatives or perceived negatives that you mention.
Unfortunately, that doesn't seem to be how it works anymore and the DNC hasn't caught on to that yet.
"Pascal is Pascal is Pascal is dog meat." -- M. Devine and P. Larson, Computer Science 340