Well so this is fulfilling a prophesy. So its OK then.
It is time to practice a little biblical separation:
2 Cor. 6:14 Be you not unequally yoked together with unbelievers: for what fellowship has righteousness with unrighteousness? and what communion has light with darkness?
Rom 16:17 Now I beseech you, brothers, mark them which cause divisions and offenses contrary to the doctrine which you have learned; and avoid them.
2 John 10 If there come any to you, and bring not this doctrine, receive him not into your house, neither bid him God speed: