Secular, liberal Jews are dying off and not being replaced. Traditional religious Jews are growing in number, and they are very conservative politically and socially.
That’s also happening somewhat in Israel.
No they are not really growing in number. Only compared to liberal Jews.
I live in a predominant Jewish community in Broward county Fl. I know a few that voted for Trump...but they won’t admit it to their friends. Israelis are a different type. Most I have met are very vical in their support of TRUMP.