The people most vociferously for conservative values are middle class, small business owners, or upper class, though the true upper class are libertine (notice who participated in the Epstein affair). The working class is filled with all kinds of very diverse people united by the fact they have to work for a living and often can't afford e.g. expensive weddings. Some of them are religious, a whole bunch aren't. It's easy to be disillusioned with formal institutions that seem to not care at all about you.

Unfortunately, a lot of these people have either concluded it is too difficult to vote, can't vote, or that their votes don't matter (I don't think they're wrong). Their unions were also destroyed. Some of them vote against their interests, but it's not clear that their interests are ever represented, so they vote for change instead.