We can also add:
Jesus was not the seed of Mary so He can't be the seed prophecied to Abraham or to Eve in Gen. 3:15.
Jesus was not conceived so Mary is not the virgin (young girl) prophecied in Isaiah.
The birth was miraculous, not natural, so as to exempt Mary from the impurities caused by the fall.
They worship the same god that Islam does.
Words can mean anything you want them to like, "brother", "brethren", "sister", "grace", "all","any", etc.
Tradition, no matter when started, always interprets scripture when it is necessary to protect dogma.
The Magisterium can trump the plain meaning of scripture when necessary.
And in doing so, the Trinity is diminished and a human being, Mary, is elevated.
"I have even from the beginning declared it to thee; before it came to pass I shewed it thee: lest thou shouldest say, Mine idol hath done them, and my graven image, and my molten image, hath commanded them." -- Isaiah 48:5