I'll answer your questions, but this is just me obviously.
1) It's not a preoccupation so much as jews are pretty much the source of all evil in the world. It would be strange not to ally oneself against them.
2) That would be beyond wonderful but it is certainly not feasible for some time
3) Trump is the only hope we have right now, since everyone else is essentially a communist or has a track record of letting communists shape the future of the country at will.
4) I think all the jews should be forced to emigrate to israel where we can monitor them and ensure they no longer are able to subvert other nations.
5) White nationalism is getting less marginal every day, in case you haven't noticed. Just look at Europe. They're one crisis away from going full ethno-nationalism.
6) No predictions from me. I think it's best to just do the best one can and let the chips fall where they may.