These people who claim to be "filled with" and "led by" the Spirit make all sorts of doctrinal claims that are so obviously unbiblical that even a relatively new believer with some biblical knowledge can see. Yet these heretics refuse, even in the face of solid evidence, to cast these heresies aside.
It is a deliberate satanic attack on faith, designed to draw the weak and the unstudied into false teachings and thus destroy their effectiveness as believers. That is why it is paramount that we, as believers, reject them and yes, don't even debate them. They will not hear, and in arguing, they create the very division and strife their "father" desires.