I think the accusation that there is much corruption in Ukraine is a fair one but doesn't take into account that the country only emerged from Russian control in the 90s and is still an extremely immature democracy, but one that was recognised as running a free and fair election in 2018 and when accusing it of 'banning opposition parties' doesn't take into account that it is in a state of war and responding to an extreme situation. This article gives what I would say a fair summary of a complex situation:
https://www.newsweek.com/ukraine-dem...russia-1690505
Do I think Putin would go any further? Very hard to say, but I would be very fearful if I was in any of the former USSR controlled territories. The bottom line is that a sovereign nation is being invaded in Europe, it's territory seized and I disagree with you that we should turn a blind eye to that. Negotiation isn't even relevent if it isn't what the majority of the Ukrainian people living there want.
'The West' promised Russia it wouldn't expand NATO - John's taken that on, but I had to belly laugh!