How would you respond to this anti-catholic garbage?

This is the same blather as the one where a protestant minister commenting on the movie The Passion of Christ who had to say that nowhere in the Bible does it say that Mary met her Son carrying the Cross to Calvary. Then he neglects to inform that Matthew 27:56 and John 19:25 relate of the three Marys and St. John were at the foot of the Cross -- how did they get there unless they met Him on the way and accompanied Him to the top of the hill?

Why does this anti-Catholic rant dismiss the Gospel of John as unimportant ["itself the least reliable of the four and often considered to be defacto non-canonical in the days of the early church" -- but today it is canonical and he still rejects it]? The only reason is that in the Gospel of John are two verses dislike referring to: that not all the books in the world would be able to contain everything that Jesus spoke and did. We constantly notice that Protestants more often than not quote the synoptic gospels, and perhaps the Epistle to the Romans, and CERTAIN VERSES ONLY, to the exclusion of all the other books in the Bible. Because the much of the verses of the other books and epistles contradict what they like to believe.