The following are the basic tennets from the Communist Manifesto. Read them then look around, you'll find it interesting how much of it we accept as a normal part of our American life
"Nevertheless, in most advanced countries, the following will be pretty generally applicable.
1. Abolition of property in land and application of all rents of land to public purposes.
2. A heavy progressive or graduated income tax.
3. Abolition of all rights of inheritance.
4. Confiscation of the property of all emigrants and rebels.
5. Centralization of credit in the banks of the state, by means of a national bank with state capital and an exclusive monopoly.
6. Centralization of the means of communication and transport in he hands of the state.
7. Extension of factories and instruments of production owned by the state; the bringing into cultivation of waste lands, and the improvement of the soil generally in accordance with a common plan.
8. Equal obligation of all to work. Establishment of industrial armies, especially for agriculture.
9. Combination of agriculture with manufacturing industries; gradual abolition of all the distinction between town and country by a more equable distribution of the populace over the country.
10. Free education for all children in public schools. Abolition of children's factory labor in its present form. Combination of education with industrial production, etc"
I would imagine that would be the practical result if they could implement a 'perfect' progressive system.