That’s a flawed comparison. Do you not think that the armor of God can protect one from spiritual dangers better than your skin and immune system can protect you from physical ones?
” Do you not think that the armor of God can protect one from spiritual dangers...”
Only if you are wearing it. And it is not skin. It doesn’t follow you everywhere.
It is widely reported that there is sexual immorality among you, and the kind of sexual immorality that is not even tolerated among the Gentiles—a man is living with his father’s wife. 2 And you are inflated with pride, instead of filled with grief so that he who has committed this act might be removed from your congregation. 3 For though I am absent in body but present in spirit, I have already decided about the one who has done this thing as though I were present. 4 When you are assembled in the name of our Lord Jesus with my spirit and with the power of our Lord Jesus, 5 turn that one over to Satan for the destruction of the flesh, so that his spirit may be saved in the Day of the Lord.
6 Your boasting is not good. Don’t you know that a little yeast permeates the whole batch of dough? 7 Clean out the old yeast so that you may be a new batch. You are indeed unleavened, for Christ our Passover has been sacrificed. 8 Therefore, let us observe the feast, not with old yeast or with the yeast of malice and evil but with the unleavened bread of sincerity and truth.
Of course the armor of God can protect. But we are also told not to put God to the test. Why would I allow pollution into my life just because I wont suffer harm? Its still revolting, and I wouldn’t want to spend my money on trash. In addition it destroys your witness in the eyes of the world when you are seen conforming to the ways of the world.