Even if you don't have sympathy on an individual level for hundreds of thousands of ordinary, working-class people with decades-long careers suddenly losing their livelihood (and you really should have sympathy for them), you should at least care on a selfish level for the increased risk of civil unrest that such a socioeconomic upheaval can cause.
I'm from a country that transitioned from free market and private property to planned economy and socialism, and then, 70 years later, back again. I'm sure it'll be fine. You can't scare me with such things :)