I think it's more like that before only Tesla had working lane following system on highways that allowed one to do mostly hands-free driving during long drives but nowadays even the cheapest KIA has it working well so no need to spend extra money on Tesla. I know working-class EU folks driving Teslas who couldn't care less about any perceived toxicity of the brand typical for German green party voting snobs.
Individual owners may care about brand toxicity or may not, but it affects how much tesla can charge for new vehicles and resale value of used ones. Of course this analysis is just MHO, maybe the real cause why EV market is expanding and Tesla is stagnating is something completely different, like missing "android auto" resp. apple equivalent thing functionality.
