I only watched the first 10 reasons, but the first was enough for me. I don't have to, the law explicitly says you can cycle on the road. Beyond that, my reasons are my own. I'm glad he laid it out for viewers, but I don't think many motorists will sit through all the reasons, either.
Bikes were on roads before motor vehicles. Bikes will be on roads after people stop owning private motor vehicles. The idea that cars own the roads is not one I subscribe to.
Like most cyclists, I am also a motorist. The idea that we are two totally combative and distinct classes of road users is also not one I subscribe to. I think we'd all be better road users if non-cyclists were convinced to use the roads as the "other" side more frequently.