I guess if one hates Jewish people they have a problem with those who convert to that faith too. Or is he equating being Jewish with being black? Nah. That would be more dumb than being antisemitic.
First little Bucky claims he is Jewish because he married someone with Jewish heritage. Not that he converted.
When called out on why that's impossible, he then said he's Jewish because he celebrates holidays and likes debate. Not that he converted.
He then backpeddles, and claims to be more "humanist" instead. Not that he converted.
And finally, claims it's simply a self-applied "honorary title". Not that he converted. People who convert don't claim "honorary title" status.
Holy claiming to be Jewish malpractice.