Why I am afraid to ever be honest about my sexuality with my Dad..

This is the kind of stuff I grew up hearing my parents listening to and one reason it has been hard for me to accept myself for who I am.It is all the more strange that they are both college educated people with careers in healthcare and accounting. I just am afraid of how they would react to me and especially anyone I got into a relationship with.https://m.youtube.com/watch?v=SsyRkWcv6e8