I do not agree with many of McCain's political ideas. However, he did serve his country in the Navy, and as a Senator. I'm sure that when he started his career as a senator, he (like many others) meant well, and tried his best to serve the people. I
Although I think he should have retired long ago, I would not wish cancer on anyone, and I would not gloat over his, or his family's suffering due to his cancer.
I do wish he would retire gracefully, and spend what time he has left loving, and being loved by his family. I would not wish illness on Senator McCain, nor on his family.