I know a lot of liberals who think conservatives (especially poorer conservatives) are stupidly voting against their class interests.
Or they don't understand that their proposed solutions don't sound likely to solve the interests.
Why do poor republicans in the US keep voting against universal healthcare?
Overall, if you define working class or poor economically, they are more likely to vote for those things.
[1]: One example: https://twitter.com/CawthornforNC/status/1323813315169165313