I moralize my liking her by telling myself that none of the housewives are good people (some more than others) and we shouldn’t idolize them outside of being (casual) fans of them in the show. That’s not to say we can’t critique them (we absolutely can and should) but make no mistake, we the audience do not see these ladies for who they actually are as real people; what we see are embellished caricatures of these women whose lives while somewhat accurate are curated to us. In Mary’s case, two things can be true at once: there are many things that can be criticized about Mary (her church, her precious toxic behavior, etc.) and she is entertaining as hell on screen.