Although by some it could be considered a virtue, going back to fundamentals of the faith has brought with it baggage beyond the allowed limit for check-in. Fundamentalism has at its root a separation from everything “unholy”, which is large in part the culture we live in according to their definition. It harkens back to the OLD Testament when Israel was called to separate herself from the peoples around her, having nothing to do with them (cf. Ex 34:14).
What is the motivation of this separation? I believe it comes from pure motives of wanting to be holy as the Lord is holy (Lev. 19:2; 1 Peter 1:15). However, there seems to be a diminishing of the fact that where the spirit of the Lord is there is freedom (2 Cor. 3:17). What does this mean in the context? Paul is comparing his ministry with that of Moses’. There is a veil over the eyes of people when they read the Law. There is a lack of the quickening spirit of God. These are a finitude and a shadow of the true substance (Col. 2:17). The laws that constrain Israel to not eat and touch and congregate with non-Jews is done away with. The dividing wall between ethnicities and a separation from the pagan has been done away with.
Paul says he has become all things to all men so that he might win some. He clothes himself with the garb of a Jew one day and then as a Greek and then a slave and then as a freedman. He tells the Corinthians that they are allowed to eat meat sacrificed to idols insofar as they do not sear their conscience (1 Cor. 10:14-33; cf. Ps. 24). After all what is an idol? Wood (Is. 40:; 44:14-20)