It's called "Ponzinomics", BUT it's not Bitcoin's fault. From a tech-first perspective, Bitcoin is our generation's Tour De Force, NOTHING will change THAT.
But from a market and value perspective, more money must come in the market for Bitcoin to surge in market value, AND the Federal Reserve/other Central Banks around the globe are doing Bitcoin a favor by printing more money. IT'S THEIR FAULT.
Ponzi scammers can take advantage of anything available to scam with their Ponzi offers. They don't have to create their own cryptocurrency to shill their Ponzi offers, and because Bitcoin is available and also a very strong cryptocurrency, it's a most favorite name to be used by Ponzi scammers.
However, scammers only abuse Bitcoin name, add it into their Ponzi offers while Bitcoin is not responsible for that, and has no role in their Ponzi scams. People only need to know very basics of finance to realize Ponzi scams. They also have to know "There is no free lunch" and if there is any free lunch such as very "too good to be true ROI offers" from Ponzi scams, they must avoid such offers as farthest as possible.
If people understand about Bitcoin history, its very high ROIs in past years, they will choose investment in Bitcoin than take risk with Ponzi offers.