Much ado about nothing. These are rock solid Democrat constituencies.
It is not hopeless. I have a first cousin who is as far left as you can imagine. However, now that he has a family, and took his son to Israel for his bar mitzvah, he has woken up to how the Left has thrown the Jews under the bus. I rather doubt that he will vote for Trump, but I am quite positive that he will not be voting for Biden. Not that it matters much, he lives in New Jersey and we know how that state is going to vote regardless. But he is an illustration of the fact that the Democratic Party has moved so far to the left and toward pure Jew-hatred that even many Leftist Jews are recognizing this fact and doing the right thing in no longer supporting them. I still wonder what thoughts go through the diseased minds of the rest of them, those who have not figured out that the Left is not, and never has been, a friend of the Jews.
Blacks were lockstep Republicans for decades... until they weren’t.