Wow! Another delusional Commoe! Who could have ever guessed?
The world had a lot of shittiness while the USSR existed, the shittyness would continue.
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Socialism wasn't even the dominant system in the world while the USSR existed, so unless that little alternate history scenario involves a Soviet take over of the globe, Socialism wouldn't be the dominant system.
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Balance of power does not guarantee a better world. The cold war was very violent in many countries.