LerntminTayrah:
You also need to understand Torah, not just learn it. And learn history.
A shul with an abomination that is the Israeli flag does not automatically make the shul a place of idolatry. It does make it very strange, because flags don’t belong in shuls, in general – certainly not that of a foreign country – but that has nothing to do with the fact that Zionism is very clearly A”Z, as explicitly stated in writing by Rav Elchonon, the Brisker Rav, the Chazon Ish, and all the rest.
The Kastner train was largely funded by Agudah and American money. Regardless, that train was obviously not an idolatrous train, whatever that could even mean.
It isn’t wise to throw around expressions like even a one-day student knows, when the truth of what you claim is the opposite. First, you seem to have missed that meenus is very attractive, as Chazal point out, and that applies even today. As well, just because the yetzer hara for idolatry was removed, that doesn’t mean that therefore A”Z doesn’t exist. That’s silly. There is nothing stopping you from bowing down to a rock if you decided to do so. You have free will. It’s silly, of course, but that doesn’t mean you can’t do it. Same with Zionism. It’s very silly (far worse than that, actually), yet some still believe in that idol (and heresy).