I disagree with “you should be able to defend it”
I hate Brussels Sprouts. I don’t need a reason, nor a defense as to why I feel that way. They may be the best thing since sliced bread, but doesn’t mean I have to justify my dislike to anyone other than myself. Same with other people’s opinions. Just because they have one doesn’t mean I have to have a defensible reason to think theirs is wrong and full of shit. My mind is not here to justify their opinions or thoughts