To get a ballpark for economic factors, let's try to figure out what the total value of absolutely all goods and services transacted, at market value, per year in the US and then divide that by the national population. I think if you asked the average person what they thought this figure would be, most would put it in the hundreds of thousands. Some might even put it in the millions. Fortunately it's really easy to figure out exactly what the answer is. It's precisely what the GDP/capita captures. It's about $62,000. And we're already chopping 27% of that in taxes to fund our current [generally underfunded] programs, so you can drop it down to $45k.
That is, as hard as it is to believe, the entire economic product of the country. Our unimaginable achievements - both social and personal can make it hard to realize how little we actually have. So you need to fund all the grand ideas you have in proportion to this keeping in mind that it doesn't mean you have $45k per person to spend. That is the entire economic product of the country.
This is why it's much easier to have a grand vision than to actually think about implementing it. Taxing the rich is hardly a solution because it again misses out on just how little we really have. If you go and just take 100% of Bezos' wealth from him, all $150 billion, that works out to about $470 per person - for one year. And he is exponentially richer than most rich. By the time you get to stripping the 20th richest person of all his wealth, you're down to $10s of dollars. Not too long after that, you're down to pennies per person. And that is, again, just money for a single year. These grand ideas need neverending annual funding.
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This is why even in places like Norway, which has extensive national wealth due to a mixture of a small population and large sums of nationalized oil money, it's not just free everything for everybody. Solving all of these issues requires much more than just a desire to solve them. The reason I mention this is because I think this shared desire is something that often gets lost in today's increasingly polarized world. We all want the same things; it's just we disagree on how to get there.