Let me first say that I have not read all of the posts on this thread. Perhaps what I am about to say has been said pages ago. If so, then I'll just be part of the "me too" chorus.

To the OP, I like the shade open. Why? Because I read. Daylight is the best light for one's eyes when reading and far surpasses the weak lightbulbs at each seat. If some want to watch the movie, I compromise by putting the window shade about half way down so I can get enough light with which to read.

Some of us are also a bit claustrophobic and having that shade up helps maintain equilibrium. If one wants to sleep, put a mask around the eyes. If one wants to watch the movie, one can do so with the shade open half way. I also love looking out the window.

Not sure why the OP is hostile toward those of us who like natural light. But guess what, the plane is for everybody. If people are willing to compromise, the flight will be more pleasant.