Counter examples abound, since as of August 2018 there were 59 approved internationalized country code top-level domains, 47+ of them actually used (Wikipedia)

Counter examples abound, since as of August 2018 there were 59 approved internationalized country code top-level domains, 47+ of them actually used (Wikipedia) .рф (Russia) 900000+ domains, .台灣 (Taiwan) 500000+ domains, .中国 (China) 200000+ domains, etc. See also .tp (Timor Português), .cs (Československo), .dd (Deutsche Demokratische Republik), .de (Deutschland), .rs (Republika Srbija), etc for examples using the latin alphabet.