Do you really, honestly, believe that man has ever in world history worn hair like that?
I mean, should there not be some examples of that in a painting, carving, etc.
How would a man work with hair like that?
Rome was in control of the world at that time. Rome set the cultural standards. The Romans wore their hair very short. Have you ever seen a Roman emperor represented with long hair.
I Cor 11:13 —
13 Judge for yourselves. Is it proper for a woman to pray to God uncovered? 14 Does even nature itself not teach you that if a man has long hair it is a shame to him? 15 But if a woman has long hair, it is a glory to her, for her hair is given her for a covering. 16 But if anyone seems to be contentious, we have no such custom, nor have the churches of God.
The long hair Paul was talking about was the long hair on a woman.
The outline of the hair on the shroud is much longer than what you have depicted.
You again assume too much.
Rome may have been the rulers of the outlying provinces, but that did not mean they were setting the styles, especially hairstyles like such are set today is not what happened in the ancient world. Local religion had a lot more to do with it than the mores of someone a thousand miles away. Romans were still a minority in the area and the people, especially the Jews, would NOT be likely to adopt their styles.
For example, Romans were almost invariably clean shaven. . . were the Jewish men going to shave their beards? I sincerely doubt it. Yet early iconography of Jesus showed him as a clean shaven man carrying a sheep, yet there is no evidence Jesus was ever a shepherd.
Looking at Roman customs doesn't tell us much. If you bother reading (even for example, Daniel, or Maccabees) you find that the Jews tended to get in trouble by resisting the cultural norms of whoever was occupying Israel at the time.