Really doubt he isn’t that strong considering Goku and Vegeta litteraly ran away from him.
I never said Broly wasn't a lot stronger than them. But your assuming he has a level of ability he never displayed. He's never shown speed on par with MUI Goku.
He could’ve charaged it up where piccolo was for the entire hour.
I don't think Goku can transport the spirit bomb back to the battle field. Even if he could its not necessary because they had fusion.
That’s a contradiction but then as he was “showing his real power” Base Goku tanked his attacks.
This is the same argument people use to downplay Broly when they bring up he didn't KO frieza in one hour. Also that still isn't Jiren showing his full power but just a "hint".
And you didn’t address the point that through that scaling SSB Vegeta would be above Beerus. If we use that scaling then Gogeta would effortlessly clap MUI Goku.
SSB Vegeta isn't stronger than Beerus but even if he were it wouldn't matter. Because Jiren beat up Vegeta, Goku and 17 at the same time. I don't see how this translates to Gogeta beating MUI.