To Speak or Not to speak in native tongue. That is the question

From the Guardian
Being multi-lingual is a richness,” Mr. Turk said in Turkish, before he switched to Kurdish. “Protecting this richness, keeping it alive, is a requirement of this era.”
He said he wanted to speak his native language in honor of a United Nations holiday celebrating world languages, and because “meaningless oppression and prohibitions on Kurdish persist.”
Mr. Turk has diplomatic immunity as a lawmaker, but he still took a risk by speaking Kurdish publicly. At least three court cases are pending against him, and his political party is under threat of closure after prosecutors opened a case against it last year, accusing it of separatism.