I suffer from psychosis (I'm schizophrenic as well) and honestly people say stuff like that because they do not understand. They have no idea how scary it is to have an illness like this. I'm fine one moment but the next I'm wrapped up in psychosis and a danger to myself. Plus no matter who you are there is someone out there who's having it worse.

If you are broke
-at least roof over my head
If you are homeless
-at least I have food
If you are starving
-at least I'm alive
and well if you're dead that just depends on ones religious beliefs.

To argue who has it worse is like men comparing who has the larger genitals. It's pointless. Instead of arguing who has it worse, you're better off finding ways to help yourself and/or others.