Capitalism is a description of an already existing system, not some imagined ideal. It absolutely exists and has permeated every level and aspect of our existence.
Capital is the true god of this world and capitalism is the official state religion of every country on the planet, and has been since at least the early 20th century.
Attributes of welfare states are not socialism. These attributes are always about preserving capitalism by preventing revolt. They are not humanitarian gestures nor are they based on any real principles of socialism, which is means of production being controlled and owned by workers. (Communism btw is a stateless, classless society).
What you call "socialist" states are just state capitalism. They have not eliminated capital or wage slavery, they are not independent of the global capitalist system. They have not eliminated Enclosure or private property (it's just owned by state instead of private individuals, but the essential characteristics of exclusion and control still apply).