Or the opposite, buying the car wasn't a statement at the time and they don't like that driving it feels like a statement now so they got a bumper sticker to acknowledge that their continued ownership is not a statement of support for Musk and his ideology.
We don't try to guess why you bought what you bought, or why you need to so actively rationalize it, and you stop assuming that those stickers are something other than "Please don't key this car" signs. Less dramatically some of them are also "I bought this before the guy started throwing celebratory HiterGruß on stage and carving up important parts of the government for nonexistent savings."
Which... for people outside of your bubble is something important.