> If you agree that Bitcoin is just as useless as videogames, and agree that videogames are not useless, you must also agree that Bitcoin is not useless.

Seems you missed that he disagreed on the first part. At least I read his "and videogames are useful because of this, and this, and ..." as saying that "as opposed to Bitcoin, videogames are useful because ..."

And, TBH, I've seen no proof of that first part.