I was expecting an interesting article on ‘good’ vs ‘evil’ but it turned into ‘why can’t everyone just love each other’ — for that to happen everyone would, probably, have to believe in exactly the same things. But people don’t.
The example you give about christian people not wanting to take the custom of gay couples is not a very good one for illustrating ‘good’ vs ‘evil’. The ‘left’ would see the christians as ‘evil’ and vice versa. The example would be suited to an article on ‘freedom’ and ‘rights’.
Gay couples have the freedom to adopt children and get married. But do shop owners have the freedom to refuse customers? Or is it discrimination? But by making people provide a service towards something they don’t believe in is that not discrimination? And what about if a gay business owner refused to serve a christian? Is that acceptable?
It generally seems to boil down to ‘us’ vs ‘them’ and there is always an ‘us’ and a ‘them’. And its the ‘them’ who are always ‘evil’ and the ‘us’ who are good. Which means everyone is ‘good’ and ‘evil’ simultaneously.