Three years ago there was a thread about why so many people drive white cars and SUVs. That thread is here:
https://www.dcurbanmom.com/jforum/posts/list/962044.page
Very early in the thread, someone stated that white is the "hot mom" car color. This was discussed and debated in the thread. There was, I believe, a subsequent thread that was just about whether "hot moms" drove white SUVs, but I can't find that one, maybe someone else can. But for a few months, there was a lot of conversation on DCUM about why certain types of moms drove white SUVs. The stereotype of the white SUV mom being the SAHM in Lululemon carrying a giant coffee (I'm guessing the 2024 version would be carrying a Stanley cup) dropping her kids off at school or activities certainly *feels* true. But this stereotype has been around for a while, including on DCUM. I think probably it's just that a lot of UMC families drive SUVs and white SUVs are more common than other colors. Thus they are associated with other markers of being UMC, like having a SAHM, wearing athleisure all the time, having kids in lots of activities, etc.
Personally, I think everyone who drives any color SUV is a "baddie" because SUVs are terrible and their proliferation has made our world worse, more polluted, more crowded, and less safe. But no one cares about this and I'm sure someone is designing a "Baddie in the Black SUV" t shirt to sell on Etsy as we speak.