[GrigoriyMikh]

Can you explain to me, why USSR was a catastrophe? And from whose perspective?

Please, provide economical facts. As stuff about "repressions", althought, for sure, took place in USSR(as in US) and had few very well known cases of excess, is mostly based on US propaganda.

To be clear, i'm not defending the personality of Stalin or any other ruler and aware of excesses in power that they used(whatever the motivation for that was). But i would argue, that it was at the same level as in US(by politician and business owners). And even much milder, if we take into account US colonialism and suffering(physical and economical) that it caused to many nations all across the globe.