This is not true. I have never seen that at all. I rarely use the YouTube main feed, but looking at it right now, it's 100% bicycle repair and cooking.
The idea that YouTube pushes a political point of view is itself a falsehood pushed by people holding a particular point of view.
I don't know about pushing a certain political point of view, but my 3rd or 4th row of recommendations frequently becomes a labelled "news" section if something big happens either federally or in my state. Separate from normal recommendations.
The idea that YouTube pushes a political point of view is itself a falsehood pushed by people holding a particular point of view.