> We are in a state that every emission is a problem.

Some things will forever burn dinosaurs, like a diesel generator keeping a hospital going in a grid down situation for example.

While cryptocurrencies might not rank as important as a hospital to you, the people fleeing Russia who couldn't take rubles with them or the people of Venezuela who can't trust the banking system have a very different opinion.

Should crypto move to non-PoW systems or use renewables? Absolutely. But some CO2 generation is worth the value crypto brings.