My experience has been completely the opposite.Unfortunately many classical music aficionados I have known deserve the satirical snobby put-down as depicted by Niles and Frasier Crane in the Frasier TV series. Narrow minded musical taste, snobbish superiority and condescension in spades.
Those interested in other genres may not like classical music much but are typically indifferent to it rather than condemning. View attachment 35888
When I was a student in particular the snobbish abuse I used to get by rock music enthusiasts about listening to anything else was common. I didn't like opera back then, though I do now, and the number of people I have heard being snooty about how awful opera singers sound outnumber the number of people saying the opposite thousands to one.
I am content to say music I don't like is not to my taste, rather than saying it is bad.
That is not my experience amongst music lovers in general, and I have had very many more snobby comments anti-classical than in the other direction.
Maybe it depends which country you are in?