Because bitcoin is simply not a pyramid scheme. It has been argued wrongly for over 10 years. Why not read the definition of what pyramid scheme is first? It would clear all doubts, yet people love to parrot dumb headlines
It is literally illegal in the US to advertise investments on TV yet there has been an absolute bombardment of marketing trying to get as many average joes as possible to buy crypto to goose the price. Enticing unsophisticated investors with a promise of massive rewards coupled with badgering FOMO is the exact MO of pyramid schemes.
A pyramid scheme means that you use money from new investors to pay previous investors.
Thats not at all what happens with Bitcoin.
Bitcoin just trades like a commodity...
You can call it a bubble sure.
But its simply not a pyramid scheme
That's a Ponzi scheme.
A pyramid scheme is when you have to pay to your superiors and recruit subordinates, in a way that the main way of recouping your investment is by bringing more subordinates, so that it's only profitable to those in the first few levels of the pyramid.