How are you proposing to run society, get food, healthcare, education, have roads, clean water, internet connectivity, power, law, and all the other things that make it possible for you to express yourself here today?

The party in question (PSL) actually has taken a stab at what their vision of the first ten years of a socialist United States would look like:

https://1804books.com/products/socialist-reconstruction-a-better-future