Miners dumping ETH and liquidating combined with selling their GPU-s as prices drop and only a few coins are to mine but even those are in the RED.
Add to this the problems of Global Economy and Global Politics being heated like Russia/China mingling and facing economic slowing which can easily turn out to be a collapse esp China.
IMO, most of the miners after the merge, they've turned off their rigs and just waiting for that opportunity for another coin to be mined. It's still testing the waters before they come and turn on their rigs again.
About the global issue, it has its part on the market as to why we're experiencing this downturn. It's very likely that due to it, most of the markets have been affected by it and we can't do anything about it.