Is Bitcoin the final form for humanity?
I don't know what you've smoked before coming up with this question but don't do it again!
If that is the best, the pinnacle of what we humanity can ever think of then we're done for as a species!
Decentralization has long been dreamed by all different social models, is there another step to be taken?
Not by all and decentralization doesn't work in everything, just look around you and see if you would love to have decentralized everything, start with every cop doing independently his job, every bus driver having his own schedule and deciding his own route, every school teaching whatever they want, every hospital deciding on its own treatments with no regulation, very street having its own mayor, and you could go on like this indefinitely. It will not be a miracle it will be chaos and you can see it happening everywhere it has been tried.
So many bitcoiners all around the world are managing their finances easily with BTC, all you need to do is use a self custody wallet, and if you control your keys, you control and manage your funds.
There are just 6 million addresses with a balance of over $1000, let's go way lower, $100, that would be 16 million at maximum, probably way less by at least 1/5 since a lot of users have funds in multiple addresses.
So, we either agree that less than 0.1% of the world owns Bitcoin, or....that the majority still hold their coins on centralized platforms.