definitely a nazi population in Ukraine

Yeah and this specific nazi population runs the government. And while I appreciate that we agree on there being nazis, the mainstream narrative until it became undeniable was that this is a Russian lie, one of many inconsistencies in western media coverage that makes me go hmmm.

Is the solution military invasion of the US, Canada, Poland, Germany, Russia, the UK, etc… etc…?

If an internal proletarian revolution proves unviable then yes, outside force might be required. Capitalist countries need to be liberated and deradicalized for the safety of all mankind.

And if not those countries why is Ukraine singled out for special treatment?

I apply the same standards to those other countries so this part doesnt apply. Nobody "gets" to be fascist, fascists just do fascist shit and the world either stops them or doesn't. Laws and norms are polite fictions and the bare fact of it is that everyone alive "gets" to do whatever nobody else stops them from doing.

And before you say “these other countries weren’t slaughtering their own people”

They are. They constantly are. They slaughter 114,000 of us every year just with forced medical neglct alone. Poverty, hunger, the commodification of medical care, crushing debt, endless wars, pollution, climate destruction, social atomization, mass surveilance, mass incarceration, austerity, privatization, militarized police brutality, all of these things are forms of mass violence knowingly perpetrated on us by the small class of rich pedophiles who decided back in 2014 to hijack Ukraine and try to crack open Russia with it, and now they're building camps for us too.