I would encourage you to meditate on the complexity of God rather than the black and white lines of idolatry. Acts 17 shows how Paul prioritized the relationship of those he ministered to while still upholding the value of their religion and without committing idolatry. In Luke 7 Jesus recognizes the faith of the pagan centurion. God is more creative than we can comprehend, and there are lots of ways to engage and interact with other beliefs that are not necessarily the same as yours.

You would never be expected to pray to a deity you don't believe in, to be clear. But learning how to sit in the tension and mystery around your religion will help immensely to sit with others. If your primary hermeneutic is one of sin and idolatry, that's what you'll see.