> They are too deep, what do we do? Wait until they die?

Yeah, you tried. Any more is probably energy wasted.

> What about the generations they’re radicalizing after them?

Explain to them how oligarchs are burning the younger generation's security and quality of life to amass ever more wealth and power for themselves.

Help them see how this is happening to both them and the people of their generation on the opposite side of the surface political divide.