I feel like this varies based on your personal experience. For example, I've been exposed to a variety of these things in close family and friends from a young age (mental handicaps, eyesight problems/legal blindness, and elderly relatives who are now wheelchair-bound or otherwise restricted). With these experiences in mind, and evaluating the people I surround myself with, I encounter very little discrimination towards these types of people in my day-to-day. But that's just based on my perception and my limited experience. It could be that outside of my social bubble, there are people who actively discriminate against those with disabilities.

Could you elaborate on the kind of discrimination you're thinking of? I'm sure people who can't see have a harder time getting jobs (and for sure have to work harder to overcome things like websites with screen-reader-hostile content), but I'm not sure if you're referring to subconscious discrimination or explicit discrimination.

The subconscious stuff is harder to deal with because it might not even hit a surface level. On the other hand, the open hostility that the LGBTQ+ people faced was easier to 'diagnose' or recognize, and thus begin dealing with.