Not enough to mention IMHO. It's way overblown.

[BrianTheEVGuy]

2. My theory...

If you follow horseshoe theory, you're aware that the further left or right you go beyond a certain point, you pretty much go the same way. Stalinists and Nazis pretty much have the same methods and set up brutal and genocidal police states, for example.

Because both the extreme left and extreme right are totalitarian ideologies, they rely on conspiracy theories to unite the true believers and to provide a rationale for why the utopia they've promised their followers hasn't materialized.

Jews have always been an excellent target for these people, because there are enough of us to be visible, but not enough of us to seriously resist a mass movement against us. Thus, we can't really fight back.

As of late, fascists on the MAGA right appear to be experimenting with substituting transgender people for Jews, but even then, they have bursts of antisemitism shine through (like Majorie's Jewish Space Laser).

Without antisemitism, or another group to blame for their failure, members of the extreme fringes would have to acknowledge that their ideology isn't perfect and complete and has weak points that have led to its failure... And the moment they do that, their basis for demanding a totalitarian society completely disappears. So they'll never become tolerant nor pluralist.