No no
ETH not profitable anymore to mine
Except you got free rigs and electricity
true statement, if you pay over 40 cent per kwh of energy. most of us pay 15 cent or less, so ETH mining ist still profitable atm
If you use some kind of undervolting and reduce the frequency of the core or memory, it is still profitable.
Miners tend to overvolt and overclock. That will make their ROI faster if their electricity price is low.,