This is no different than the way both Holywood and Main stream media portray the Islamic people. Are all Islamic people terrorists. Of course not. 99.99999 percent of Islamic people are peace loving people. There is a very small percent that is not, yet the PTB want us to fear them all.
They are doing the same thing in portraying ET's.
It is all about placing fear into the sub-conscious ignorant minds of the unconscious majority.
There is so much sterotyping in this world. Many americans think Canadians live in Igloos and use dogsleds to go to town.