Taxes are how we collectively get shit done. Education, infrastructure, justice, defence, environmental protection, parks, libraries, police, health, diplomacy, museums, transport, …
And yes, rich folks pay more for those things because their taxes are higher. And they should pay more, since they get more benefit from them; I enjoy driving on good roads to get to the beach, while rich folks profit from good roads because their can move product - and customers, and workers - more efficiently. I benefit from a good education (and libraries, and museums) because it means I can secure a better standard of living, while rich folks profit from my education (and libraries, and museums) because it provides them with a skilled workforce. I appreciate the presence of an effective justice system because it makes my life safer, while rich folks profit from an effective justice system. Etc.
This drive to lower taxes for folks who’re already rich beyond avarice is absurd, whichever way you look at it.