I have to disagree with you. The examples you give are all commercial entities, except of course for small towns which are government entities. Much of America is already running Socialistic enterprises. Lets start with police departments, they are paid for with our tax money and they protect us. When you call the police, they don't ask for a credit card number. Further, all of these alarm companies profit from the existence of police departments, when the alarm goes off the police respond not the alarm company, yet the alarm company profits. Fire departments they don't bill you for responding to a fire at your home or business. Schools again socialized, yes you pay taxes, but the government provides the schools, the teachers, the school itself, athletic fields, etc. Not convinced, what about all the the rural electric companies owned by local and regional governments. I could go on and on.
The point is that much of what we do in America would be called Socialism if it didn't exist and was proposed today. I think the real problem is that so many people are stuck giving "ism" names to things they don't even understand, and then favoring one "ism" over another regardless of its utility to the problem at hand.