USA is not so bad compared to other nations. Plenty of wars were started by other nations too. The US is just in a position of dominance so it has to kick ass as much as possible. Even if that means being seen as a nation of evil.
There is still a slight difference.
USA existed for 250 years more or less.
It has been at peace for... 10 years? 20 maybe?
So not, USA isn't just "as the others nations"...