End game Bitcoin theory

So, been buying bitcoin for about 3 years now and am starting to realize something. The secret is out, big banks and governments get it. They get that bitcoin is the end game of currency and they need to start participating or it's very possible that they won't be needed 20 years from now. However, lots and lots of people still don't understand bitcoin and possibly worse, maybe people see it as something they want to buy, but then sell later when it gets to $100k or $200k per coin. However, even at let's say $200k, you'll need to sell your bitcoin to someone, and who's going to have the USD cash to buy your bitcoin, it's going to be the banks, the blackrocks, the vanguards, with infinite money supply and eventually, let's say 10+ years from now, they can simply run up bitcoin to $1 million USD per coin and buy every single coin in circulation. Once they have all the bitcoin, they'll create a monetary system based on bitcoin so we all feel good about it, but then again go back to a debt issuing, inflation tolerant world where the people are again enslaved to big banks.

So just buying bitcoin actually isn't good enough. We can ONLY trade it in a closed circulation system in which banks cannot buy all of the bitcoin from us with money that they can simply print to infinity. I don't actually have a solution for this. But I feel like it's a problem we aren't addressing as everyone is gearing up their ETFs and whipping the SEC into tolerance... I felt so good about bitcoin and now I feel like we have another problem that we need to talk about, like immediately.... thoughts???

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