The mistreatment of the Yemenites and what was done to them is the blackest stain that the Medinah has on its history. Denying that is denying history. However, that doesn’t turn everyone and everything related to the state into dangerous Mashmidim. No one (at least, no one non-delusional) claims that the state is perfect. Some people just think that we need to be Makir Tov to the RBSO for what we have now because it will eventually lead to the Geulah.
(I’ve quoted this before, but R’ Schachter quotes R’ Herzog who quotes a Ramban that we have a Havtacha from HKBH that we won’t lose Eretz Yisrael three times. Thus, the Medinah is the start of a Jewish sovereignty that will last L’Olam Va’ed. That is why I feel that Yom Ha’atzma’ut is a day on which to give Shevach V’hoda’ah LaHKBH.)