This is one thing none of us can control.  If they get to own this much of the Bitcoin supply then it is what it is.  Enforcing the rich to become poorer affects everybody and makes Bitcoin not a free economy or currency any more.

Further more.  It is our fault collectively for letting them do this and purchase enough Bitcoin.  There may be 3 thousand billionaires but we are billions of people.  Collectively, we could do more than 3 thousand billionaires can.  Yet, most of us are fooled into selling Bitcoin thinking it collapses soon and most of us rather purchase clothes and cars than have an eye for savings and investments.

In my opinion.  No matter how hard a free currency is worked on, the average person will continue to fall into the traps set by the rich and more experienced.  Like all roads led to Rome, all roads here lead to the same ending.  When an asset becomes powerful, powerful people will be playing it in their hands.