Internet has a hard-on for virtue-signaling and black-and-white perspective, and “adopt, don’t shop” is one of those. There is nothing wrong with ethical, responsible breeding.

There is, however, a lot wrong with unethical breeding (e.g. doll-face persians, scottish folds, pugs, frenchies, showline GSDs, etc., and backyard breeding as a whole) and official breed standards set by people who only care about the looks and not the health of the animal.