Anti-Paulism is a common heresy among liberal protestants, but the Bible debunks this heresy long before liberal protestantism was invented. False teachers like Jory Micah and John Pavlovitz are a couple major false teachers who promote this viewpoint. John Pavlovitz is better known as the anti-Trump pastor.
The key passage in the video is 2 Peter 3:14-18. The NASB is used.
14Therefore, beloved, since you look for these things, be diligent to be found by Him in peace, spotless and blameless, 15and regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you, 16as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction. 17You therefore, beloved, knowing this beforehand, be on your guard so that you are not carried away by the error of unprincipled men and fall from your own steadfastness, 18but grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory, both now and to the day of eternity. Amen.