Same series as Axiom's End (Noumena series? I believe they're called); but the 2nd and 3rd books are where they start to get openly antisemitic (the 1st book had a scene where medieval Jews were implied to spread the bubonic plague to goyim, so, I mean, there was always Jew hate in the series). Like, one of the villains of book 2 is a dual loyal Jewish senator (he's dual loyal...
to Israel the reptoids). By book 3 the villains are no longer Ampersand's race of giant psychic space chickens, but instead underground baby eating ancient alien reptoids that are heavily implied to be working alongside/worshipped by Jews, as well as being in control of congress/senate/etc. Heck, book 3 literally opens with a Reptilian emerging from the underground and disguising itself as a demon so it could trick young Catholic boys...in order to eat them.
Here's my
summary of book 3. I also summarized the 1st & 2nd books of the series in said thread circa 2022.
Books 1 and 2 of Lindsay's series have made their way to Dollar Tree here in the US, if you want actually want to give reading them a shot. (Her writing is all over the place/hard to follow/full of awkward flowery prose, so uh, good luck).