Yes, but you can't very well hold gravity responsible. You could, but that would be a very short court case. Humans are held resposible for their actions.
Why not? Why must humans be responsible but not gravity?
Yes, but if you were to say, "killing is good", very few people would tend to agree with you. There are, like it or not, common moral grounds engrained within the human consciousness. We all know if an action is good or bad. Thats the method by which we judgde actions. And the human consciousness says killing is bad. In order to live in a civilized society, we must find common moral grounds, and those present and known by all human beings are better than an arbitrary set of moral codes.
So you are just going by majority of opinion to determine this?

I suppose the sun went around the earth 600 years ago, then.

Besides your "rules" most certainly do not apply to all human beings, or else we would not have wars, terrorists or anything else like that. A better explanation of it all that would account for this is that we are trained to think of certain actions as good or bad based on our social and cultural surroundings while we grow up. Also, we aren't interested in what it takes to live in a civilized society - that's an entirely different issue - but rather what is universally true or false, and that is where all this fails.
Well, we should always strive for the ideal. Yes I know that governments don't do the right thing, but they should, and whenever they don't, that should be considered a "bad thing". You can never get better if you accept the current state of affairs as good enough.
But not everyone thinks that what you are saying is any better; some, like myself, think it is merely stupid. And you can consider it a "bad thing," but what difference will that make in the actual state of affairs?
And people don't get rights from their government. People are born with rights. Governments may try to take them away, but never think that it is they who give them in the first place.
I suppose ants, chairs, computers and so on are born/manufactured with rights too then. Why don't they get any rights?
I wouldn't say that its exactly anti-American. Its not directed at the people of America, but rather the government. I would be fine with people complaining about the Serbian or Canadian governments, if their complaints were legitimate.
By extension though, that goes for most of the people as well, since the government's actions are supposed to (and at the moment, do) reflect the opinions of the majority of the people here. But as I said, it would not matter to me who you are complaining about if the complaints actually had any rational backing behind them.