Avira,
1. How do you define Lashon haKodesh? As for Rambam’s definition, in fact, improper words some Israelis use are Arabic and English.
2. If many people speak it is is not hubris.
3. What about all the Yiddish-speaking gangsters? They even translated “Cosa nostra” into “Unzer zach”. For that matter, as I posted, Yiddish was the banner of the fiercely anti-religious Bundists. After the Bolsheviks took over Hebrew was banned and “counter-revolutionary” but Yiddish schools, newspapers, and theaters were set up for Jews.
4. The State of Israel is the polity of Eretz Yisrael. When David fled to Gatt he said that he was expelled from Hashem’s inheritance (Shmuel Alef 26:19).
RE, If they are acting on behalf of the bet din the gett is kosher Rambam, Hilchot Gerushin 2:20, SA EH 134:20).