Plenty of room for equivocation with words like "endorse", so depends what you mean by it.
I mean, literally in the first video he makes the standard argument that terrorist designations are politicized but you have to "look at who's right". And it's all in the context of defending Hamas and Hezbollah etc
And that's immediately followed by a clip of saying "America is biggest terrorist organization".
Obviously, the streamer is taking a "critical IR" type of standpoint.
So, I'm not sure what standard you're looking for. I never said anything about who's right or wrong, either among the streamers or the underlying sides of the conflict.
But the statement that he "endorses" Hamas etc doesn't seem so farfetched in the overall context.
And I apologized for the snark in my comment providing the link -- that was motivated by pointing out how readily available information is for self-assessment of the claims vs. calling for the original commenter to cite their claims (which most people are not doing in most HN comments).