Yes, intelligent comments are by far the best. A reasonable explanation, without being rude that allows others to see your side. I totally agree. I personally just make it a point not to comment on most deviations at all, like them or not. I find the sheer amount of cyber-bullying unsettling, even when the perpetrators believe they are standing up for a just cause. There is always a line.
I also agree, having an overly protective person speaking on the behalf of the minority group in a rude manner just makes it worse. That's as bad as not letting the minority group have an opinion, because it's turning it around on others. This is something I've also noticed in the comments of your drawings. Four or five people fighting, typically ignoring everything the other one said, so that no reason is found. Of course this does not only occur on your pictures, this is a condition of the internet I believe, sadly. I just wish people could let people have their own opinions and be done with it, especially if those opinions are not hurting anyone.
I'm not putting a weight on importance, but arguing over a picture seems very petty. Certainly there are many pieces of artwork I am very protective of and love, whereas there are others I really don't enjoy. However going and turning a picture into an argument just seems very petty and childish. Politics, Global Advocacy, matters where lives are affected everyday by the decisions that are made, I can understand and have in the past participated in arguments (though hopefully I did so in an intelligent manner), but over a picture? Unless it's a picture that was blatantly stolen or infringing all the hate is just depressing.
I wish I could find humor in the arguments. I tip my hat to you being able to do that. The arguments tend to just upset me so I walk away, because like you at a point it becomes impossible to see either side. I'd just like to be as far away from the drama as possible.