Wanna share my experience too here.

I used YouTube with the algorithm, mostly for educational stuff, like vsauce, kurgsat and tech stuff. I started showing some interest in politics and news, start watching tldr news, then it pulls me into Vox, as I showed some anti trump sentiment. To put it quickly, it didnt take too long for me to realise that I was being drawn to ever more left leaning content (obviously a lot further than merely Vox, second thought and deeper)

Which is why I left algorithmic YouTube by using alternative frontends