The cost of Chinese miners powered hydro elecricity is around $150 per bitcoin. Some of them will not be profitable when the difficulty rises further.
And then the inevitable happens... the price rises .... and mining becomes profitable again.
That's how the cookie crumbles!!!
Price increasing good for bitcoin miners because If price increases according to their mining they get pay by blockchain. Only problem for bitcoin miners is electricity So nowadays big miners switched to Solar power system for mining. Once halving done price of the bitcoin will run like a rocket. And mining also will reduce accordingly.