The honest answer is that Liberalism is an anti-social ideology- induvidualism forced on a social species. Some countries try and mitigate this contradiction with social services and "community events", but its still there, that underlying notion that you are alone, struggling to get by and everyone around you is competing for those same resources. In amerika its just worse cause of the intentional destruction of third spaces and no community, subburbs etc.

So being nice and joyful is alien to people cause "what are you so happy about?". Like, being happy is threatening to people cause they can't understand that you don't need an outside object/experience to acheive happiness so they think you got something they don't and they want it, they think they can out compete you for it. Add in the necessary dehumanization that liberalism needs and you get a bunch of miserable fucks who revel in anger and devisive language, and who will never come together in times of crisis. Like, right now.

Misery loves company.

Theres more but whats the point. The answer is always Liberalism forced on a social species.

Idk where you live,but the Americans I still speak to, and when I lived in America nobody fucking liked this shit

I think this is for a very small demographic