I must be missing something. I have been watching TYT recently after being impressed with Cenk's arguments in his appearance on Jubilee. Regarding American politics, he is certainly left. Maybe people on Lemmy think otherwise because we have so many literal Communists, but in their videos they take every opportunity to rant against the "donor class" while criticising Republicans for obvious reasons and Democrats for being pro-Israel, their election shenanigans, or for generally not being radical enough.
The only politicians I've seen get much praise when I watch are Bernie and Zohran Mamdani, so that's about where I would put them. If you don't consider Social Democrats / Democratic Socialists to be left, I am curious where you think the centrist "origin point" of the political compass should be. I would think their policies would be left of the governments of almost any country on Earth.