I don’t believe this myself, but there is a not entirely ridiculous argument that when Democrats are doing the militarism against Arabs there’s no resistance at all, while when Republicans do it the Democrats (and aligned media) at least try to work against them. I don’t think that’s how it actually works out (I think the Democrats don’t really try and thus are completely ineffective), but I can see why a rational person could come to that belief.
Like take the protests right now vs. BLM. BLM wasn’t exactly a great performance by the Democrats, but there was at least some token support for the validity of their cause, but since Biden’s in power and the protests are in some part a criticism of him, everyone’s working overtime to discredit them and pretend like the only thing worth talking about it some smattering of antisemitism. There may be platitudes about having the “right to protest” while studiously avoiding referencing the reason they’re doing it, but most of the messaging is about outsider agitators, antisemitism, and violence (leaving aside that it’s mostly been committed against them).