Mark 6.

“Isn’t this Mary’s son and the brother of James, Joseph, Judas and Simon? Aren’t his sisters here with us?”

So. How can some Christians insist that Mary remained a virgin for all of her life?
If a marriage has to be consummated - then how does her marriage to Joseph work?
To whom do all these half brothers and sisters belong?
Let us always take Scripture ahead of dogma, shall we?