God turned Israel over to evil and corrupt rulers when the Jews turned from God. It would be crazy to think God would not do the same for Christians. Most people have itchy ears and there are far too many willing to scratch them.
Saint Paul: 2 Timothy 4:3
For there shall be a time, when they will not endure sound doctrine; but, according to their own desires, they will heap to themselves teachers, having itching ears.
In this instance though there is definitely infiltration and the fish rotting from the head down.