Evil long ago infiltrated our churches. Infiltrating and Undermining them in a planned attack. Our churches represent and real obstacle to Evil. Attacking them from without didn’t work. So, Infiltration was the next and Obvious course of action.
Evil never rests. Goodness seems to tire far too easily in this lazy, complacent world of ours.
There is a direct correlation between the timeline of when evil began infiltrating the churches, and when every other major cultural institution, which used to promote Christianity throughout the millenia, began denigrating it instead.