It's soooo cool. To say that reincarnation is like giving infinite second chances is like saying that you can do anything bad as long as you're Christian because you can always ask for forgiveness later. In my religion, there is no freebie like that. You can't do something wrong and suffer no consequences. Karma is cause and effect.
Every cause has an effect.
Your actions, thoughts, and words all have consequences. In your second life, you can be born in hell, in heaven, as an animal, or as a plant. I'd hardly call being born in hell a second chance. I suggest that he read some books and gain real knowledge about what he wishes to bash.