And now we've overcorrected and have people dying from a lack of government care.
It was indeed meant to sound "cool and fun". It was supposed to be a memorable slogan. That's why Reagan used it. Then people made it into a battle cry for letting the hyper-wealthy dismantle regulations that were often written in blood, or for explaining why we need to let people go into bankruptcy from medical bills.
Having some centralized/public ownership of some enterprises doesn't necessarily mean that the government is going to purge people or starve tens of millions.