I'm trying to word this in a way that doesn't make me come across as a problematic Gentile, but I think the Israeli Right is playing a dangerous game in that it constantly seems to attack the diaspora as lily-livered (or even self-hating) even though most of the diaspora are Zionists with affinity for the idea of the Israeli state. Israel as a state isn't supposed to be just "a country with lots of Jews in it" but act as a sort of representative of all Jewish people. I feel like a lot of Jews - not just the likes of Gerald Kaufmans or even Jewdas- are genuinely uncomfortable with Netanyahu becoming synonymous with their identity, especially as in certain countries the issue has become incredibly partisan.
What I am trying to say is that, for Israel to just not care about the diaspora would be an abdication of a lot of soft power. I would wager that most American Jews, if forced to chose between their affinity with the Democratic Party and a distant nation that implies they're a bunch of effette self-haters will probably go with the former tbh.
This, I think that Netanyahu and Likud are leading Israel towards a long term disaster.