We shouldn't discriminate based on anything. The challenge is that everyone or nearly everyone discriminates and doesn't know it or doesn't consciously acknowledge it. We all have biases that are based on our life experience or our exposure to media messages or messages from people who influence us.
For that reason, I get wary about anti-discrimination laws. Let's protect minorities. Okay. Now let's protect women. Okay. Now let's protect handicapped people. Okay. Now let's protect religious minorities. Okay. Now let's protect gays. Okay. Now let's protect old people. Okay. Now let's protect fat people. Okay. Now let's protect bald people. Okay. Now let's protect people who are color-blind and can't dress snazzily. Okay.
You can make an argument for any of those groups, and it would be a valid argument. But where does it stop? Anybody in the population today who's not bright or not focused now says they have AD/HD. Do we protect them? It gets to the point where everybody in the population is "protected", and most of it is impossible to enforce anyway. If a bald guy doesn't get hired, is it because he's bald or something else?
I recognize that prejudice exists. I'm just wary of legal solutions. Maybe on a population basis you can do analysis, but on an individual basis it's almost impossible to prove.