How can a homophobe claim to be Christian when they are openly not following the God they claim to be following?

How do homophobes reconcile declaring they are Christian when they are not following or bypass the commandments of the God they claim to follow? What Bible are they using? If they earnestly say they are trying to be Christian but don’t end their persecution of others as God decreed, how can they say they are for God but be against His commandments unless they are in a religion (man-made) and not so much a fellowship with God? Do they expect God to make allowances for them, or do they believe they are supposed to change to fit God?