That isn’t quite what he said… be interested if that is what he meant.
I certainly agree that any understanding of Paul at odds with Jesus should be discarded. But only Jesus simply isn’t Christianity. There are lots of religions who see themselves as followers of Jesus including Islam. But most Christians don’t see Jesus and Paul as being at odds. And while I have criticism of some popular directions Christianity has taken I do not attribute this to Paul but to other things such as Gnosticism and Plato. The gospel of salvation by grace through faith is taught by both of them. It is the Gnostic change of this to a gospel of salvation by sound doctrine which is the worst distortion and other ways in which some Xtians have made being saved an accomplishment in life with a sense of entitlement from some legalistic formula for salvation.