Banning a Russia party that is in bed with Putin is a good idea. Did America allow the Nazi party to operate in the U.S. during WW2?
Right, right. Everyone we don't like is a Nazi. I forgot!
In WW2, the "opposition" party was the Republicans. I'll bet you wish we had banned them!
Allowing a political party aligned with the country that violently invaded your nation to be legally allowed in your nation --- is simply not acceptable. Ukraine was quite right to ban this party.
I was a registered Republican for many years. This ended when the party went right-wing nuts -- this insanity and walking away from traditional conservatism has been furthered by the MAGA crowd. BTW -- I have never been a registered Democrat.