People argue against a livable wage all the time, though. They just say that those jobs "were never meant to be a career", that it's "supposed to be for kids earning extra spending cash", that "if people want to make good money they need to develop skills". They'll tell you that if we interfere in the "free market", it will wreck the economy, and we'll all be starving. They're thrilled to tell you how they, or their parents, made sure to be in a good financial position before having kids, and if people have kids who can't afford the costs including time off to be good parents, that's because those people are irresponsible. And on down the line. They'll shame you for "demanding free stuff", and walk away feeling smugly superior.
It's just fundamentally not how human psychology works to publicly acknowledge what you think is good, and then privately work against it. People who do the worst and most selfish things always have a justification for it.
The Senate is affected by the OG of gerrymandering, giving an enormously greater weight to votes in less populous states.
Most people are not as informed as you. They aren't analyzing their views on specific issues and voting for the candidates most in alignment with that. They're voting based on single hot-button issues like abortion or gun control. They're voting based on the way they feel about a politician. They're scared of terminology made up to scare them, seeing the Democrats as representing "cultural Marxism" and "critical race theory". They are in an information bubble that builds a worldview which is complete, compelling, but incorrect, and their votes reflect that.