For instance, the Ferengi practice a sort of inverted set of Judaic customs. Ferengi men wear head coverings that leave the crown of their heads exposed like Bizarro-yarmulkes. Meanwhile, female Ferengi are forbidden from wearing clothes, the inverse of how Orthodox Jewish women are always expected to dress modestly.
However, the Ferengi also inherited a few more traditional antisemitic stereotypes. In the show, they're immoral, money-obsessed bankers and merchants who live their lives in accordance to the Rules of Acquisition, a distorted version of the rules of Mosaic Law which includes such gems as:
-- Once you have their money, you never give it back.
-- Never allow family to stand in the way of opportunity.
-- Dignity and an empty sack is worth the sack.
CBS Television Distribution
Seriously, nobody tell these guys about Starfleet replicators.
Now, even if you want to say that those parallels are pure coincidence or subconscious choices made by the creators, it doesn't change the fact that they intentionally designed their universe so that crude stereotypes could stand in for characterization. It's like this team of very progressive creators looked at centuries of antisemitism and thought, "Wow, that festering cloud of hideous racism sounds like a cool idea for an alien!"