A priest saying "I'm gay" (there's only 450,000 priests running around) is hardly the Church changing its teaching.
Birth Control Catholic charities and birth control
Has the Catholic Church ever taught that Birth Control is okay? No. Does some group providing birth control to employees in disobedience to Church teaching count? No.
You are going to have to come up with better examples than this. Do you think we've dropped these teachings because a priest said he is a faggot, or because some quasi-Church organization is slyly providing birth control on the side?
This is like saying we approve of the sale of indulgences, since Friar Tetzel indulged in that practice, when we had condemned the very thing for over 1300 years prior to Tetzel's wanderings in Germany.
A Catholic disobeying the teachings of the Church does not change the teachings of the Church. That is pretty basic. Can you grasp it?