Russian nuclear is ~17% (compare US at 19%). Overall it is slightly less CO2-intensive than the US, as it uses less coal. They have almost as much hydroelectric power as the entire US renewable sector.
Might be more, but it's still a minority of their grid. Wikipedia has a graph for 2016: 18.1% nuclear, 47.9% natural gas, and 15.7% coal.[0]
"Energy Matters" says that EU energy production was 26% nuclear in 2015, but only 12% for consumption[1], so I'm not sure how to look at that comparison. Either way, that's probably mostly France (~80%[2]). US around 8-9%[1].
TL;DR: Yes, most western countries probably have less nuclear, but it's a low bar.
Cryptocurrency is not even 1% of global energy consumption. The environment is being destroyed by China, western nations, fossil fuels. If anything cryptocurrency is just a very small drop in their bucket.
Monero is almost solely use for crime. Most exchanges won't touch it, and that's a good thing because it would pour fuel on top of the existing cryptocurrency-enabled ransomware trash fires, if it was actually usable.
If we were talking about petty crime, I may agree with you, but cryptocurrencies enable ransomware, which frequently shuts down critical services like hospitals and schools. Ransomware attackers have also leaked personal medical records from hospitals, and student's private records from schools.
Surveillance is an issue, but for the most part, it's not warrantless in our current system. Cryptocurrencies, excluding things like Monero and Zcash actually make it considerably easier to do warrantless surveillance.
If I'm forced to choose between some instances of illegal warrantless surveillance, and the complete inability to trace financial crimes, I'll take the instances of illegal surveillance, with the hope we'll try to fix those issues.
There are those that day global warming is caused by politicians talking crap about global warming.
My theory is global warming is caused by the people that vote for the politicians that talk crap about global warming.
