Well then you have awfully low standards, because the "brothers of the Lord" doesn't settle the issue either way. Children from a previous marriage.
And children from a previous marriage of Joseph is not the only plausible explanation ... so what’s the point in it? ... To a Catholiciism adherent it is vital to maintain the fictions of Mary’s mediatrixship, etc. The issue is vital to Mariology, but not to salvation, so I go with what Paul clearly wrote and was first hand witness to.
Amazing.