They weren’t written hundreds of years later

Arguing a point not made. The point made, as so eloquently put: AFTER certain events, without qualification. Of course it may have been meant to be said, but it was not.

And why do we blindly trust a bunch of old men in long robes who decided what should or shouldn’t be in the official canon?

Good point.

And his synagogue has been infiltrating every human endeavor since the time of Jesus

Indeed. both issues bring up the question of trustworthiness of what is considered source material, is it not?