My friend listed my name as a co-author on two journal papers without my permission
Your academic standing should be your primary concern, so if the quality of paper 1 is so poor contact the editor(s) and get the paper withdrawn or your name removed.

For paper 2 if it offends your beliefs such that you want to be disassociated with the paper, again contact the editor(s) and get the paper withdrawn or your name removed. 

You have to decide if the issues warrant your subsequent actions, we cannot decide, but worrying about the effect on your "friend" is secondary.