Goku in the Battle of Gods movie almost ripped the fabric of space and time during clashes with Beerus.
Plus in the anime, he could force his way forward in time during his fight with Hit. To rival Gojo's Hallow Purple he could use Hakai which can also erase things from existence.
Ok, understandable. I thought the movie wasn't canon anymore as the anime actually got to that and that didn't happen, and the time skip doesn't matter bc infinite is impossible to get through no matter how much time you get, you gotta use other methods.
god, my brain is rotten, I can't read kamui without thinking abt how I have astigmatism in an eye and myopia in the other, so I have a close up eye, and a far away eye, like the Kamui