Given the state of technology at this time, there is probably no reason other than discrimination in hiring for a 70% unemployment rate among the blind population. But frankly, I would think that having experienced that discrimination would make one more sensitive to, and appreciative of, the feelings of members of other groups who suffer similar discrimination through no fault of their own.
My wife (PhD/MSW) spent a career working with blind and deaf populations, and believe me, they could have no stronger advocate. Any hint of prejudice against anyone with ANY disability or challenge, physical or mental, was absolutely NOT TOLERATED in our household. Thirty years ago I made the mistake of repeating a stupid Ray Charles/Stevie Wonder joke. I don't think our relationship is completely repaired even to this day.
I understand that people see the world through cultural filters and form opinions and values based on their own life experiences, but I also know that we have a choice of how we respond to our feelings. I do something stupid every single day and know that I could be taking a higher road even as I'm doing it

, but I always know that when it comes right down to it, when the rubber meets the road, I'm gonna' do the right thing. And if I ever actually hate anybody, it's going to be because they actually did something to merit it, not just because they exist.
chas