It's pointless to try to quantify the exact proportion of the population of Ukraine sympathetic to nazism. It's possible the majority of people in Ukraine are anti-nazi and would vote for one of the banned left wing parties if allowed.

The problem is that the oligarchs and politicians in charge of Ukraine, as well as western journalists and politicians supporting them, are okay with depicting Ukrainian soldiers wearing sonnenrads, swastikas, dirlewanger patches, and calling Stepan Bandera a hero. There's something deeply, deeply wrong with your political project if this kind of thing happens regularly, and these nazi photo ops have been a weekly occurrence.

There's something viscerally horrifying about seeing people with billions of dollars in weaponry brandishing the same nazi iconography as the Buffalo Shooter.