This is no excuse for not becoming more educated on the subject if you are ignorant. Every source is full of bias. That's why reading more than one book on the same subject is a worthwhile endeavor, because even a supposedly objective history is full of some editorializing of the events. The trick is to recognize when the author is editorializing and when they are presenting the events as they happened, and to take the editorializing as the author's point of view and the events as factual unless proven otherwise.
Disagreeing with someone's opinion about something does not require you to disagree with their presentation of the facts.
There is a difference between editorializing and fabricating complete nonsense and unless you are looking for facts to reenforce your own bias it’s not hard to distinguish between them.
http://www.pewresearch.org/fact-tank/2017/06/29/in-russia-no...
Russian propaganda has been working on “restoring” the image of Stalin and the USSR diligently for over two decades heck just a few days ago they’ve arrested a Russian historian who authored a book on Stalin for being unpatriotic.
https://historynewsnetwork.org/article/170146
https://www.rferl.org/a/second-historian-of-stalin-s-crimes-...
It's hilarious that you literally link to radio free europe. "Statistics are meaningless" lolz
It’s also interesting to see just what is driving it, countries like Estonia and Lithuania are EU countries which greatly benefited from integration with western society while the rest of the Russian vassal states were left to fend for themselves and essentially lost what little power they had even if it was only power by proxy.
An easy answer would be too look at the numbers for the former USSR states which are now EU members.
Furthermore it's important to note that this is an aggregated statistical butchery from multiple surveys in none of which was a question asked along the lines of "would you rather live under the USSR or being free".
All of these were peripheral questions about various nationalistic identities and historical figures, all of which were heavily retconned in the past few decades by Russia.
Stalin used to be one of the most despised figures in Russian history even during the USSR today he is celebrated as a hero that is simply sickening.
1. https://www.newsweek.com/men-uncovering-stalin-era-atrocitie...
2. https://themoscowtimes.com/news/gulag-historian-detained-ped....
Many people who grew up in the Soviet Union, are still alive today. There are even a couple in this very thread, and apparently they know very much how horrible it was.
This perceived loss of respect drives a lot of nostalgia for the USSR.