Why people consistently vote against their own interests to benefit the rich?

Generally people tend to focus on one thing and don't pay any attention to the side effects. Morons want lower taxes for themselves and don't pay attention to the fact that the wealthy get the most benefit out of conservative cuts or that they just defunded the benefits of having a government like enforced food safety regulations. Or they care about abortion because they buy lies about post birth abortions and ignore everything else. Or they just teally hate immigrants and want to be mad and don't care that the party of hate works against their other self interests.

Many people are stupid. Like really, really stupid.