I think I'm going to reject an intellectually disabled person who wants to date.
Are you too focused on the disabled part?
I feel like dating this intellectually disabled is wrong
People who are intellectually disabled are allowed to date so it is not wrong. You should decide based on other qualities to see if you are compatible, not their intelligence level.
I only prefer people who I will never get bored with.
It is okay to not want to be bored at a date but when you are on a date, there are two people. You are partly responsible for being bored if you do not put yourself out there.