(....)
All in all - there is no trust in the system, and when there is no trust - there would be a crash in the price, "because markets are ruled right now by fear" (Alessio Rastani on the BBC, when the Eurozone was in troubles).
We should also consider other markets on this to identify some reason why the cryptocurrency market is crashing. As you can see that stock markets are also crashing, so it could be also a reason because, for some time, the cryptocurrency market and the stock market are somehow correlated, that's why I am very calm.
What OP mentioned is only for the crypto market probably reasons which are good also and got a point, especially an issue on UST Terra Luna and stable coins de-pegging issue.
I can also consider the high inflation rate which we currently experiencing in most of the countries in the world, all are affected.