If I follow a podcast, I follow that creator.
If I follow a YouTuber, I follow that person's channel on a particular, closed, privately-owned platform. If YouTube decides to kick them out, I no longer follow them.
Yesterday I actually learned about an app trying to solve that problem [1] through an absolutely bad-ass video response by one of its creators to a takedown notice from Google [2] (the mic-drop part starts at 3:29)