Pure emotion

Cultural conservatives offer you nothing except outrage. They have always existed and always will and science even tells us that there are biological factors which help create them. Often there is religious orthodoxy involved in their early formation or perhaps racism which helps feed the fear that all is going to hell in a handbasket.

If you have an open and inquisitive mind you should naturally be open to cultural change especially if it improves the quality of life of the disenfranchised and does nothing to hurt society as a whole. When women weren't allowed to vote or slavery was considered normal, conservative minded people would have been most averse to changing something which today we find repugnant.

Cultural conservatism is grounded in fear of the "other: and the sense that some public good will be lost by allowing a new mindset. We all have at least one of these people in our families and you will be hard pressed to use logic to change their minds as this is not an issue which can be argued on those grounds.

It is often simply pure emotion.