The best results (for certain degrees of “good”, see the “Fuck Cars” movement, #MoreThanJustBikes and Racist by Design for its downsides) from any socialist experiment to ever be undertaken was, of all things, the US Interstate Highway Act. Yes, the highways that serve as the beacon of Capitalist freedom are also socialist; they’re funded by taxes.
Now, Communism is another beast entirely. In a Communist society, 100% of the economy is planned and funded by taxes; this quite simply puts too much power in too few hands, much like America’s current corporate oligarchy but as a nationalized monopoly. Authoritarians adore a concentration of power and will consume and violate powerful positions if given the option.
A government railroad is not communism. A public school system is not communism.
The reason to fear communism is because it is designed by extremely authoritarian individuals, not because it runs off your tax dollars.
Socialism is an aquarium within which the communist fish (communist nations) are dead but the capitalist fish (corporations) are the tiny fish feeding of the remaining government fish (the modern globalized nations of the world, regardless of stability, technology or form of government), which vary in health and size but are generally bigger and healthier than the capitalist fish… Except day by day the government fish get thinner and weaker and certain capitalist fish get fat off the blood they leech. The blood is tax-funded resources like health care, and the capitalist fish which aren’t growing fat off the government fish are the charities, unions and the average persons who collect food for and pick parasites off the skin of the government fish.
Obviously that’s abstract, but the relationship is basically that. You are already socialist, you just don’t realise socialism can exist beyond the trap that is planned economics.