It's very simple: Jews and Asians mostly live in cities. Cities vote Democrat, rural areas vote Republican, suburbs are a mixed bag. Cities are communes where most everything is shared and little property is personally owned. As farm automation continues, young Americans needing jobs are forced into the communes where most of them eventually become communists.
A lot of younger Asians are really into pop culture. It’s cool to be a Dem so they follow the herd.
Jews vote for their politics, which are leftist, and always have been, you can go back into the 1800s.
The democrats have always won the Jewish vote, EXCEPT, when there was a viable candidate who was more leftist, such as in 1920 when Eugene Debs ran for the Socialist Party.