“Big” is not a negative adjective. “Truck” is not (mostly) an identity or demographic group. You’d have to make up some term like maybe “murder trucks” to get close to an analogy. Would you not suppose that someone who advocated against “murder trucks” thought trucks were bad?
“Crowded” - maybe mildly negative. “Places” - not an identity or demographic.
“Toxic” - Ok. “People” - This hardly seems like an identity or demographic. Maybe if martians start talking about “toxic humans” we’d have an analogy.
And that whole last paragraph is just a straw man.