Conservatism in the end yields back and conserves nothing, liberalism is the moving further to 'communism' while conservatism locks the gains made by liberalism into place.
Today's GOP, or republican is just what the democratic party was 20-25 years ago.
Both parties serve the same master, while the people are forced to serve two masters.
I think liberalism leads to capitalist status quo, not communism. At least American liberalism. But I do agree they're both functionally the same party and same master.
When you really take a look at American policies there is nothing close to communism. Federalism is not communism and really cannot be communism. Social policies can be inspired by communist or socialist ideals but they're done under the careful guise of capital control and federalist control.