“The only thing that bothers me is the politicians who send our children to things like this without knowing what it really does to the families,” Anthony Unruh said. “I think if they knew what it did, they would be more cautious instead of worrying about their political careers.”
I don’t read it the way you read it at all. It sounds like he’s mad at ANY politician who approves of the war.
Read with the idea that she (journalist) left out details such as which politicians and the "what" they are are supposed to be "cautious" about that affects the families.