A few thoughts come to mind:

1) Jews own or to a large extent run a lot of the platforms people use to communicate and convey information. So you often aren't allowed to criticize them; antisemitism is the most punished form of racism and as such is typically simply not allowed, at all. As an example, Nick Cannon has been saying anti-white words for a while, no problem. But the day he criticizes Jews he is pretty much de-platformed. Since this is currently a free speech platform, you will see a lot of things you won't see elsewhere.

2) Jews tend to not assimilate as well as other ethnicities. For example, any 3rd+ generation Italian, Irish, Pole, etc. will have almost completely assimilated into society. They won't speak more than a few words of Italian, Polish, etc., they will just have vague stories about their grandparents cooking certain food. They will consider themselves firmly American (in the case of America) and act as such. With the exception of their last name, you couldn't guess their heritage. Your average jew, despite many generations of residency, considers them jewish before american. They are part of a global tribe. In the most extreme example, you have the Hasidic/Ultra-orthodox communities who completely keep to themselves and barely speak English if at all, despite being here for almost a century at this point. This can be seen with extremely high rate of intra-faith marriage and the often mandatory conversion of a non-jewish spouse and the raising of their mixed children as jewish.

3) Many jews will put the interest of their homeland, Israel, above that of their host nation. As an example, if you went up to the average jew and asked "Do you support this $40 billion military aid package to Israel?" They would say yes. If they proposed a similar military aid package to Spain (in my case), I would say "no" without any hesitation.

4) Jews really tend to look after their own. For example, a 4th generation German with the last name Schmidt hiring a new employee would think nothing of an applicant with the last name Fisher. The thought that they share a common heritage most likely wouldn't cross their mind. However, Jews tend to look after their own, hire their own, contract out to their own, etc. I have to imagine this creates resentment.

5) A large part of it might just be jealously. The data shows Jews are almost a standard deviation more intelligent than other groups, so are very successful and over-represented in high level positions, as would be expected. This probably creates resentment among your average person.

These are just some thoughts. I personally like most jews and have a lot of good jewish friends.