OP, I also don't think your post was hate-centered.
Is this such a problem that people have to be so angry about it? I agree that when it's hot and everyone is irritable, it's annoying for someone (anyone) to get in front of you in line, but I personally wouldn't let it ruin my Disney experience. What does that accomplish?
Nothing. But keep in mind that I made this post because I was thinking of a way to make the jerks (not the nice people) happy so they wouldn't complain (and thus cause awkward situations for the rest of us) and also so the disabled could be more comfortable but I will yield to the possibility that there is no real solution.