This cartoon from The Seattle Times illustrates how America's economic pizza is actually sliced per capita, highlighting the massive disparity between the Top 1%, the merely wealthy, the upper middle class, and the lower 50%.
Top 1% .. holds 32,5% of the wealth
And people over 55 own 73% (most of the top 1% that isn't tech billionaires, are also old people after all). Start taxing corporations more and they won't be able to retire the way they have, so they're naturally against that. Good luck figuring it out without magically increasing birth rates to have more workers per retiree, or having your old people live in squalor so young people can have better lives (potentially driving up birth rates if they feel they can afford children)