I assume your use of "they" refers to "Minutemen" as a whole. Regardless of your opinions on the illegal immigration debate, the article seems to indicate the folks involved in this crime were not accepted by the Minuteman movement. I doubt even the perpetrators would suggest the killings were motivated by their anti-illegal immigration beliefs.
Would you have used the same language to group the entire Muslim faith in with those who commit terrorism?
Don't get me wrong, I suspect we probably hold fairly similar opinions on the immigration issue. I just don't think false generalizations add anything useful to the conversation.
Yes, I can actually understand that some people might want an enforced immigration policy. Most democracies have one, so empirically I would say such "wickedness" is popular.
They call the border patrol. Can you believe such wickedness exists?