system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Mother Theresa, and why there are such differing viewpoints on her and her work?
gpt
Well, for years she was uncritically glorified by many Catholic organisations and spokesman for her work with the poor in what was and is a pretty tough area with lots of poverty and sick people.

Christopher Hitchens, the famous atheist journalist and provacatuer, took a real dislike to her and did a great deal of work to discredit her efforts, saying that they were un-modern, inefficient, and unscientific. He had a number of enemies over his career that he was absolutely relentlessly critical of; she was one and Henry Kissinger was another. 

Hitchen's work succeeded in changing her public reputation --- in some circles. Other people still venerate her and think her worthy of admiration. (I think she's at least partway down the official path to sainthood.) 

Personally, I'd say read a bit about her from both sides if you want to know more. Hitchens could be a very good writer, but he was never a very fair one. He was careful to make his criticism factually accurate --- and also to never give an inch of praise to anything he criticised, even if merited.