1. It's role, not roll.
2. Putting LOL or lmao in every post doesn't make you sound clever as though the person you're responding to is amusingly dumb. It Just makes you appear unable to refute their position logically or factually, and makes you sound insecure and childish. Grown men don't giggle nervously every time they speak.
3. There's a VAST difference between choosing someone for a position based on race, gender, or sexual orientation, and choosing someone for a position based on merit and then recognizing that they belong to a particular demographic. If you don't understand the difference, the next few years are going to be very confusing and difficult for you.