Many people who aren't paid enough under capitalism to pay income tax pay a greater percentage of their income in taxes than those whose earnings require them to pay income taxes. Your notion that only those who pay income taxes deserve a vote completely ignores the fact that government's tax and trade policies largely determines who earns enough to pay income taxes.
We do pay a higher percentage of taxes, but those taxes we are assessed are more or less a savings account, or go to operate society you get advantages from every day. You drive on the road so you pay road, city or state tax. Even if you don't drive, you still use those roads to get mail, have your son, daughter, neighbor give you a ride to the store, take a cab. Speaking of stores, you pay taxes on those roads because that's how the products you buy with every shopping trip get to that store.
You enjoy the safety of street lights, a police officer or fireman when you need one, water and sewer lines that deliver you with water and waste service, schools for your kids or grandchildren to attend, new and maintained highways, state, city and county governments to conduct all these services, garbage pickup..........
Your payroll taxes you get back and even more if you live the average US lifespan. Yow will get back your and all your employers Social Security contributions. You will get back you and your employers Medicare contributions and much, much more.
Federal income taxes are used to run our federal programs and agencies. It's what supports the strongest military in the entire world, the freest government in the entire world. It's spent on things like keeping southern invaders from entering our country; at least until Biden takes over. And yes, it's spent on all those social programs like welfare, food stamps, HUD, Medicaid, foreign aid, subsidies to PBS, NPR, the Arts, just to name a few.
Most all people have enough to pay something towards federal income tax, so why don't they? Because then those people would no longer support wasteful spending by our federal government. The Federal government loves to waste money, because then they promise you something somebody else will have to pay for, they get your vote, and votes mean power and control.