Do you know of the possibility of a biual becoming heteroual?

I'm not completely convinced that is something you're born with. It seems like it's more of a decision. If you tell yourself it's alright to be attracted to the same , it becomes so. Likewise, if you tell yourself that it's okay to objectify women, it becomes so in your mind. The opposite is true also. If you practice thinking differently, can't you become straight?