Yes boomers are the last Zionist friendly generation. People like Netanyahu think they can just ramp up the propaganda and that will fix things but it won’t. And Christian Zionism itself will just die out with the boomers. So I would suggest Israel plan ahead for this eventuality.
Note that propaganda is just one tool in the toolkit.
Active silencing, de-platforming, censorship, de-monetizing, doxxing and many forms of cancellation are other tools.
Younger folks are catching on that bad acts means bad actors.
Instead, they will work closely with the Americans to build new factories in Israel to meet their needs for defense.
France is pretty much self-sufficient and Israel should aspire to be more like them.
There may be a time where AOC may eventually become President and Israel should be prepared for that possibility.