“This statement I agree with, but most celebrating Yom Yerushalyim are celebrating the Medina and not Hashem!”
I can only speak for myself. I recite Hallel on those days as a thanks to the One who made it all possible.
“just because Hashem is doing and has done Nissim, doesn’t mean the Geula has started (Ischalta D’geula)”
My rav told me that Rav Soloveitchik z’tz’l did not like “reshit semichat geulateinu”.