Most people think that without miners there would not be cryptos at all, but this is WRONG, there is no way that cryptos could disappear just becuase there are not enough miners.
And all those who invested in a lot of GPU's or ASIC's are now losing a lot of money.
One could imagine that, because some miners will stop mining, the market will get flooded with BTC less quickly.
Not true. The same amount of bitcoin will be generated every 10 minutes (on average). If there are fewer miners, it just means that reward is spread between less miners.