Oh dear, someone has just made a very telling objection to one of your cult's core beliefs. How do you respond? Why not use that time-honoured bullshitter’s technique: the way of questions. First, suggest your critic is being crude and unsubtle in his or her thinking. Then ask them a rather vague question that is only tenuously related to their objection (but make sure it contains some of the same key words as the objection, so it seems like it could be relevant).
For example, if they point out there’s way too much evil in the world for it to be the creation of your all-good–and-powerful God (key word: "evil"), ask them, in a serious tone: “But how do we deal with evil, then?” Notice that because you are asking a question, you do not commit yourself to anything at all.
Your opponent is now stuck having to answer your vague and thorny question (which is of course pretty much irrelevant to the issue at hand), a question they’ll probably struggle with. So, if they try to answer it, they look weak. If they refuse to answer it, they look evasive. And your suggestion that their position is not as “nuanced” as yours will further suggest to your audience that you were aware of these difficulties, whereas your opponent seems not even to have considered them.
Your opponent will also be baffled as to where you're going with this question, and how exactly you think it relevant, and their hesitation and puzzled look will help further to create in the minds of your devotees the impression that your opponent is the one in trouble in the debate, not you.
Even if your opponent manages to deal successfully with your question, you can just ask another, and another, tying them up in knots, leaving your audience with the impression that you have won.
The truth, of course, is that YOU never dealt with THEIR devastating objection. But the chances are, no one will notice this, or even remember what your opponent's objection was, after a few minutes of “the way of questions”!