After his previous conversation with Hamza, see video https://youtu.be/cf_7znZm3HQ Emanuel comes back to refute Hamza after studying the topic further.
It is a common misconception amongst Christians that Paul and the Apostles of Christ were unanimous in their preaching of a crucified Jesus. Christians think that the apostles and Paul were preaching the same doctrine and everyone believed in the divine Jesus who came to be crucified for the sins of the world. However, if one examines the bible carefully, that person would observe that Paul and the disciples were not preaching the same doctrine and did not believe in the same Jesus.
The Apostles in Jerusalem heard that Paul has been preaching a different doctrine in Galatia and Corinthia. Paul was telling them not to follow the law anymore and that they don’t have to eat kosher meat anymore or to be circumcised (according to Genesis 17::14, the covenant is broken if there is no circumcision) etc. So the Apostles went to Galatia and Corinthia and convinced everyone that Paul is wrong, when Paul heard about this he went straight back to the cities.
6I am astonished that you are so quickly deserting the one who called you by the grace of Christ and are turning to a different gospel
It says different Gospel, so obviously the disciples were teaching them a different doctrine and it was not just minor issues.
Please watch: “The Masked Arab Unveiled”