Democracy is mob rule. When one says that democracy decides what is a crime and what is not, one is then defending a long history of lynchings, miscegenation, slavery, forced medical procedures, Jim Crow laws and much much more.
The current democracy-worship afoot in the US ignores the fact that almost every progressive aspect of the US state sprang from a counter-majoritarian institution: Roe and Brown, plus the administrative implementation of civil rights law.