I went to my homepage on YouTube to find it completely different. The video ICONS are now all large, the video order are all messed up. I couldn't see my regular channel videos. The alternative channels to video that I have been watching have all gone.
Instead there are political videos appearing and video's about the economy
None of which I have never watched and when YouTube recommended them in the past I told them no!
It doesn't look like you can change anything now.

It looks to me that USA government has been interfering in the user policy. Presumably too many of us are ignoring Trump so much, that we now have to see him recommended in our video choices!