I find this happens any time I engage with anything anyone on the right also likes watching, like a gun channel, or a non-political video from a right leaning channel. I think the algorithm is just saying “I saw a republican watch this once so if you watched it there’s still some chance you’ll engage with this right wing content.” I think it pushes it so heavily because it’s a gold mine (to the algorithm) since content by those channels is so heavily consumed.