Tom Scott did indeed present a TV show with Colin Furze... demonstrating, along with my other comment on this thread, just how small the world of successful YouTubers is
Someone pointed out a while back that the best way to gain success on there is basically to collab with someone already successful in the same "niche".
It basically acts as an endorsement of sorts.
Alternatively, start (or stage) a fight with them. A LOT of "YouTube drama" is deliberately staged engagement-bait.
https://en.m.wikipedia.org/wiki/Gadget_Geeks