there's another slogan.....
Look at the variety of capitalist countries and how they differ, knowing what "capitalism" is helps you to understand which aspects of them relate to that and which aspects of them are political, cultural, social. I could easily point to terrible capitalist countries and say it just doesn't work, but there are degrees aren't there?
Also consider that democracy was tried, reverted to Empire, then wasn't tried again for over 1000 years. France tried it, reverted to Empire, then tried it again. In those gaps your argument would be used to deny attempting democracy.
Knowing what "socialism" means would help you to understand how it has been, hasn't been, and can be implemented. But you're drooling on yourself repeating things you've heard like "but I like my toothbrush"
You're doing yourself a disservice, and at least have the decency to keep your regurgitated opinions to yourself.