With all these in play and Bitcoin miners already scaling down production, Being in the mining business right now would really be a bad idea.
One week ago we had ATH for Bitcoin hashrate. This doesn't look to me as "bitcoin miners already scaling down production".
Then, they only start working on a proposal, that needs voted, that needs to get into countries' legislation (with many changes). Then - in some countries there will be elections and those may not set laws that make their voters angry. So even if by chance some European miners will get into troubles (after many months or even years), well, the world is much bigger than Europe.
I know, Americans also work on something similar, but there I see people do (much) more in order to wake up their politicians.