Oh, thanks for replying in good faith. A lot of people gave you hostility because you did say something that seems a little misinformed. And people get ruffled by seeing that kinda thing so often. But good on you for taking the time to read stuff.

I'd really recommend reading this: The Principles of Communism by Engels.

It's very clearly written, short, and explains what exactly communist ideology is and who it represents.

In very brief: Communists believe there are two classes, workers and business owners. This is always a hostile relationship that can't be mended, since the two want different things. So we propose the working class should abolish the business owning class.

Liberals do not believe this relationship is hostile, or they don't believe it exists. Or they believe it can be mended through the use of state intervention. That's one of the primary differences here.