No they're not. You don't define the overton window, society does. I'm right of the democrats but I'm not far right, that's the society we live in.
Do you see anything that looks like "socialism" coming from the democratic party in the united states?
Ocasio-Cortez is one congress woman who has been in office for less than two years. She is not in a position of power within the democratic party, in fact they actively oppose her.
So what is your point? AOC does not reflect where the democrats are as a party, and it's dishonest to pretend so.
And student loan relief is not socialism. Free college could arguably be, but what is being discussed is far from free college.
Your logic is astounding.
That's all socialism.