This suggests that the expected outcome will be for bitcoin mining to be an activity that exits the EU. ... and if the EU decides to crackdown on Bitcoin for b

This suggests that the expected outcome will be for bitcoin mining to be an activity that exits the EU. ... and if the EU decides to crackdown on Bitcoin for being GDPR-non-compliant, then legitimate users in the EU will stop using it, but the GDPR really places no restrictions on something that doesn't do business in the EU. Since most coin mining happens in Asia anyway, it's entirely possible the BTC community could respond by just saying "BTC is not certified for use in Europe due to the GDPR." That would weaken BTC's value, but there are a lot of markets out there that aren't under the EU umbrella.