Leftists have a different definition of "minority" from standard English. The leftist definition has nothing to do with population size. It only refers to position in the progressive stack, and thus white people can never be a minority, even if there is only a single white person left on earth.

https://en.wikipedia.org/wiki/Minority_group

This is the biggest issue with normies. They always fall for these kind of redefinition word games. Most normal people are fine with "numerical minorities" having protection, for example representative democracy rather than mob rule. The left takes words that normies respect, such as "minorities", "rights", "equality", etc, and attach a new definition to them. If anyone tries to call them out, the left will appeal to the old definition to get normies on their side and shut down their critics. Then once criticism has been suppressed and it's time to actually write legislation, they will use the new definitions, and normies are oblivious until it's too late.