A look ahead: Will all major institutions and countries own the majority of BTC in the future?

Trying to wrap my head around what the future looks like to retail investors and BTC users in the future.

If all these countries and major institutions are buying up massive amounts of the supply, won’t they be able to manipulate the market just like traditional stocks?

It’s wise to own BTC and likely take advantage of the gains in the future, but then what? Aren’t the “big boys” just going to hoard it all over time and have the ability to do as they please with the price?

Is the only way to counter this by hoping the supply is distributed across nations and international institutions where they’re competing?

I’m not a global Economics major (i.e., I’m a regard), so be gentle folks.

Just trying to understand what could happen at a high-level with tons of assumptions.