Jews who migrated to Israel did so precisely for the reason that they wanted to live among other Jews. It’s an explicit restrictive association.
America, on the other hand, is and always has been exceedingly diverse. It’s a fact of life.
Therefore, Jewish ethnic nationalism in Israel can succeed, while white nationalism in America is entirely futile.
If you are a white person, buy a house in a decent neighborhood and, to the extent the law allows, exclude undesirables from moving in.
I don’t see what more you can realistically do.