Liberalism fundamentally has an incompatiblity with socialism and communism because it's fubdamentally rooted in the rights of an individual to own land and/or the means of production, as well as supporting market economies.

This is in stark contrast to workers owning the means of production, or seizing private property for the greater good.

Liberals in other countries tend to be centre right, such as the Australian liberals or a fair amount of European liberals.