I am truly sorry for your family. Are you sure that all their prosecutors were Soviet Russians? Is it possible that at least some of them were Soviet Ukrainians, Soviet Belarussians, Soviet Georgians etc... or were they just - Soviets? And do you know what triggered such harsh measures?
They were KGB or KGB trained. The Soviet system came entirely out of Russia, and it was Russia invading other republics to build a Soviet Union. My family was targeted because they had royal ancestry (I'm a count), were intellectuals (Tsiolkovsky is my greatgreatgreatgrandfather, and my grandfather eventually became one of USSR's top scientists), and because they resisted and sometimes fought communists.
Anyway. You've admitted two things: that your old personal issues with one country and one ideology who do not exist any more affects your reasoning today
The country that invaded other countries and set up Soviet Union still exists. It's Russia. And the Ideology absolutely still exists, because I recognize it in its current actions. Why is it that Germany creates a Nazi party, kills millions of people, recognizes their fault and mistake, and tries everything it can to never repeat it, while Russia creates Soviet Union, kills millions of people, but then says they are not to blame, it was the Soviet political party, not Russia that it came from, and continues to try to make that mistake?
and that your primary source of informations are your Maidan buddies.
My main sources of information are Russian and "Western" media. I use my Kiev sources to verify claims, and I know how to read Russian propaganda "between the lines." It's also easy to read a Russian report about something, see photos from, say, Poland that show that this report is untrue, and figure out that most likely everything is the Russian report is not happening.