"but surely you are aware of the main tenet of socialism, which is the replacement of the capitalist economic system?"

You sure about that? There's more than one strand of socialism, you can't reduce such a diverse and disparate political creed into a single definition.

"I have been a member of a socialist party for most of my adult life."

Means nothing Ake, not a thing. It's actions, opinions and intent that attract us to whatever interests us, and I see nothing in your posts that indicates a disposition towards socialism.