I think the inbreeding has gotten bad on Jacob's side of the family in the later generations and it affects their appearance badly. Like a habsberg jaw situation

Yup there are lots of anti-zionist jewish people. Some estimates say 50% of american jews are anti-zionist. It's just amazing to see a rothschild publicly hold that position for decades, as they're basically the reason zionism is known or cared about at all in modern times. They promoted zionism in the 1800s in london so they could make israel with the balfour declaration