Again with your specious arguments. How many national elections has the Mafia won in Italy? According to your logic, the Mafia has little impact on Italian elections because they don't win elections. Like the minority party Nazis in Germany and in Ukraine, you don't need to hold office when you hold a gun to the head of the person in office.

International law is argued in court, not in the court of public approval. You are wrong here again.

Humanitarian interventions can definitely be used as pretexts for violating another countries sovereignty. It is in the UN charter. That is what Russia argues they were doing invading Ukraine: helping to a stop a slaughter of civilians in the Donbas. That is not for you and I to decide in Medium comments, it is something for the UN and (probably) the ICC.

The fact that Katchanovski's evidence is not (yet) widely accepted does not make it false. I don't know if you're a history buff, but the US invaded Vietnam based on "evidence" that North Vietnam attacked the US. Later it turns out this evidence was false.

The US invaded Kuwait in 1991 based on evidence that Iraqis had committed atrocities in Kuwaiti hospitals. Later it turned out that evidence was false.

The US invaded Iraq in 2003 based on evidence that Iraq had weapons of mass destruction. That evidence was fake.

The evidence that Ukrainian government forces fired on protestors was used as justification for armed groups to coup the government in Ukraine in 2014. Those armed groups were partially funded by the US. Katchanovski uses counter evidence to show that it was actually the Nazi-aligned Ukrainian groups who fired on the civilians to create a justification for their armed takeover of the Maidan.

The international consensus of Vietnam, Iraq and Iraq changed with time. I am convinced, based on the physical evidence, that in time international consensus will agree with Katchanovski.