Earlier quoted context omitted.
We should be asking "what exactly is the point of holding BTC"
Holding BTC for the long term has historically been a lucrative investment. Just not holding it on one of the many centralized exchanges that always seem to get hacked or go bust.
Sure, the price will always go up in the long run. But it will become less and less liquid, and at some point those who are left will have hundreds of thousands or millions of theoretical money that's completely unspendable, because no-one else will buy in for more than they did.