Bitcoin has been around for 15 years at this point and there is absolutely no confusion about the technical underpinnings. It has handily survived attempts at government shutdowns in China and serious interest rate hikes. Numerous scams have come, gone and had no impact on hodlers.

At this point it is no longer reasonable to just claim it is a greater fools game without an argument for why. The evidence right now seems to put it in a similar category to gold in that people generally don't like that it has value, but nonetheless value is present.

I also draw people's attention to the parallel with something like a RAID array - it is possible to make robust systems out of unreliable parts. The abundance of scammy and scummy operators in the crypto space is quite consistent with the similar prevalence in traditional finance. The system is robust regardless.