So we don’t really know what to do with that statement.

Also, as far as their relationship is concerned, Beerus simply has the dominant personality. And Belmod has been stated to be stonger than Beerus. Therefore, there's no proof that either Jiren or MUI Goku are more powerful than Beerus.
There's no proof to say that Belmond is more powerful than Beerus, and Jiren is stronger than MUI Goku.

As for the topic, still Beerus. The one thing with Beerus that people have to remember is that Goku says that ‘he’s probably stronger than Beerus’ and I’m referring to Broly Movie.
This is like asking if the President's bodyguards are stronger than him, ... he made the smallest Majin Buu the biggest threat, Goku gets smaller as a Super Saiyajin God and so forth. For example, if SSG Goku from BoG was a 6, Beerus is probably … 0 comments After seeing Goku’s new form, fans cannot say they are too surprised by this revelation. It was already confirmed Jiren>Belmod in the manga, and Belmod seemed like one of the stronger GoD, so if UI Goku>Jiren, there is a high chance Goku is stronger than Beerus.

Going off of what we heard and saw, Goku might actually take this one. Beerus may be stronger than Goku, but taking out Supreme Kai is an easier way to deal with the problem if Goku’s particularly desperate. Vegeta can't user Ultra Instinct at all, he seems weaker. We can only assume he’s talking about full power Broly at his Peak where he’s at his most dangerous. Even if Broly is a little bit or even a lot stronger than Beerus, Broly may not be able to contend with Beerus so to speak. Doesn't make sense that the entire reason of Super, Goku trying to catch Beerus, happens outside of a Goku vs. Beerus fight. Whis stated that Jiren might be the mortal stronger than his GoD (Belmod) who is said to be above Beerus (although Beerus said it was just one arm wrestling match), and then Belmod says "Yes, Jiren, show them all your power", further implying that Jiren is indeed the one. People think Whis is a 100x stronger than Beerus for some reason. Beerus has proven to be more powerful than a God of Destruction when he used just one chop to take down Beerus and also held off both Super Saiyan Blue Vegeta and Goku simultaneously. If one passes away, so does the other. If Whis is stronger than Beerus then why is Beerus higher on the social ladder? By this logic, Goku still isn't stronger than Beerus. Toriyama said if Beerus was a 10, Whis is a 15. He is strong enough to hold off two of the universe's greatest warriors by just lifting one finger, proving how strong this Angel really is.