I didn't watch the video. I've heard so many dumb "English is unique Gaelic/French/German/Roman bla bla bla" weird exceptionalism talk (mostly from monolinguals) that I just couldn't be bothered with another video on it.
I can understand (I hate this video title actually), but yeah, telling that "That guy is an idiot" without listening at what he said is not smart
During the video, he's listening and debating against some French (?) phylosoph I suppose, that basically said shit like English is just French; then this video adds details about why Yes, but also why not, and where yes and no