Remember, the social Democrats sided with the Nazis over the socialists. They’ve done it every time they’ve been given the opportunity, and will continue to do so as many times as people fall for their shtick.
“The master’s tools will never dismantle the master’s house."
-Audre Lorde
True capitalism is what we live in. Competition has winners, those winners gain outsized advantages. They use those advantages to purchase regulatory frameworks which benefit them. This is inevitable, and has happened in every single capitalist society in the history of the ideology. Monopoly is the natural end state of capitalism. (Actually, fascism is, but monopoly happens along the way also)