I believe there’s a commonality between the three ‘persons’ of our Holy God: the Father, the Son (Jesus), and the Holy Spirit; they ALWAYS act in a way that is without sin.
Other synonyms for “just” Christians can relate to when it comes to God include: blameless, dependable, ethical, fair-minded, honorable, nondiscriminatory, trustworthy and unbiased.
Based on a definition found at Merriam-Webster, my knowledge/belief of the Bible; and other Evangelical’s opinion on the question, I confidently state my conviction that God is self-sufficient.
My response to pop culture products that clash with my religious beliefs has been an ever changing process, and likely will continue to be, though it can now be summed up in two words: Identify and Avoid.