Can you give some examples of the allusions to such stereotypes in this thread? Anti Semitism is a scourge that must be dealt with. If there are people engaging in that behavior we should root it out and report it!
so, in an effort to respond in good faith to this.
one of the most pervasive stereotypes regarding jewish people (and especially older jewish men) is that they secretly control everything. this pops up all the time, most notably on the right with all the anti-soros shit. I don't think this is quite that severe. however, it is (or should be, at any rate) incontrovertible that the narrative of "sanders made the bad thing happen" falls into the same bucket. you don't need to literally say "bernie sanders, the jew" to be antisemitic. you don't need to say "bernie sanders, jewish geppetto" to suggest that he's taking some role as puppetmaster, and his minions are doing his bidding.
at the end of the day, posts that suggest "the berners" somehow caused kamala harris to run out of money or be a terrible candidate aren't something I'd call offensive or even intentional. however, I do find them to err far too close to anti-jewish stereotypes for my liking. she fucked up all on her own, and we don't need to traffic in weird conspiracies to try and explain it.