Absolutely, correct. I would add even Jews in EY shouldn’t in any way celebrate Yom Haatzshmut.
Jews in Israel celebrate Yom Ha’atzmaut because they are happy that they live in E”Y and are on a higher madreiga than those in chu”l. This is, of course, because even 1 square centimeter of the shkotziest corner in Tel Aviv has more inherent kedusha than anyplace else in the world outside E”Y.