While I see where you’re coming from, I don’t think you’re giving enough credit to the motivations behind these calls. Calls for diversity are so strong because the current state of affairs is so bad.
We don’t just want “different body types” or “different skin tones,” we want characters that are as well-done as their male, white co-stars. Characters who, despite not being male or not being white, are just as well-written and acted.
It’s possible that the best way to do this is to get more diversity in the creative fields. Indeed, many have taken up that motive. (Though, interestingly enough, we see resistance to efforts in that space also.) The thing is, it is far easier to not have a poorly-written character of color than it is to infuse an entire industry with diverse backgrounds. A badly-written character is a badly-written character — oftentimes to the point that even the audience is distracted by it. It’s great when a studio does it right. But oftentimes, even in 2015, the shitty character is the only one who looks like you.
People of color, women, and the LGBT+ community want to feel respected. Right now, most of what they see are caricatures of themselves, or stories about a bunch of white guys. This needs to change.
I do like the push we’re seeing for new stories about diverse characters — things that aren’t just rehashes of old. But even those are sparse, in large part because publishers have repeatedly shown skepticism for stories that don’t have a straight, white, male lead. We aren’t just struggling with societal values, but with commercial values as well. Hollywood doesn’t want to fund our stories.
When people who aren’t white and aren’t male see that media has improved — that they are no longer the source of comedic relief or the exotic helper, they will feel better about how society portrays them. They will no longer aggress at misrepresentations so strongly, because they will finally feel like this world respects them.