Methinks DovidBT has hit the nail on the head:
Is there a generally accepted definition of “Zionist”?
If one is talking about the stream of Zionism that attempts to replace Judaism with secular nationalism, then Zionism is bad.
If one is talking about the stream of Zionism that loves Eretz Yisroel because it is the land in wich we can best serve Hashem, then Zionism is good.
If one lumps all of Zionism into one big boat and insists that it must all be labeled either the absolute kefira or one of the ikkurei emunah, Zionism is something to be debated ad nausem in the coffee room.