Bombay's name change to Mumbai was announced in 1995. Almaty was 1993. Saint Petersburg was 1991. Nowadays you won't hear their previous English name anymore even when you talk with English speakers who support those politicians you listed.
Making up fantasy about a group of people you dislike is not going to be conductive to discussion on an international mailing list
My comment was about what names native English readers and speakers are likely
to recognize and use and how long it will take to change that mentality. There
seems to be a lot of inertia resisting changes propagated by modern systems,
exemplified by support for Boris, Donald, and their ilk and supporters, who
would like to believe the clock could and should be turned back to maintain
20th century or maybe even Victorian norms.