You do not know what someone else suffers, how can that not be clear to you. Some can suffer 10x what others can without considering suicide once. So no, they haven't "clearly" suffered less, Anthony could simply be a pussy, or the commenter be very brave.
Your confusion stems from the fact that you seem to measure suffering as an external factor.
Two people can have the same exact upbringing yet have vastly different internal experiences. Some people react to negative externalities or internal struggles differently than others.
I make no assumptions about what OP has been through; however it's pretty clear that they have not had Bourdain's experience, and as such clearly lack empathy.
That doesn't mean suffering automatically leads to empathy. But I entirely doubt that OP has experienced enough suffering to know what Bourdain has been through, in order to make such a callous remark.