1) it eliminated personal exemptions for taxes. The standard deduction often doesn't cover the tax burden for the middle of the middle class. the loss of clean energy and EV credits. it will cost more to upgrade or repair green energy improvements to their houses. It also eliminated the ACA credits, so now their personal costs for health insurance have gone up.
2) It dropped the permanent tax rate on the top income rates from 39% to 37%. The pass-through business deduction was made permanent. Wealthy business owners whose income comes from their business, not a salary, but the profit. they get taxes less on the profits being passed through the busines to them. this is in addition to the 2% drop.
3) It cut them through the work requirements- in order to receive non-disabled adults must work 80 hours a month to receive medicade or medicare. They have to re-check every 6 months, which if they make a mistake in the paperwork or they are lost in the cycle, they're dropped. And because the deficit has been increased without a subsiquent tax increase, due to the PayGo Act of 2010, there will be other cuts to the programs.
4) with the lost of teh ACA credits, the health insurance premiums immediately jumped up. Additionally, they have gone up since that cut increasing to by 58%. Deductibles have risen from an average of $2900 to $3500. Enrollment fell by 5%, about 1.2 million people. so if they do get sick or hurt, it will be without insurance.
5) you can check to see which hospitals are closing in your state due to the cuts here: https://www.businessinsider.com/map-rural-hospital-closures-by-state-2026-1?op=1
Because fewer people have insurance, dispoportionaly in the rural areas, and they have more expensive plans they seek healthcare less often. Which means less revenue for the hospitals.
That's why they voted against it. The bill does nothing. The 'no tax' on overtime or tips isn't immediate. The taxes are still taken out, but they get to claim them at the end of the year. So they won't see any benifit until the following years tax return.