Anxiety and depression are both useful for humanity. If you're garbage, you're gonna suffer from these things, so you won't become a part of society and never reproduce, which is a good thing for humanity.
This comment could be seen as pretty offensive, so it may be a good idea to reflect on the words you are saying.
This is my philosophy, if you go against it, I have nothing else to say.
Saying that someone with anxiety or depression should not reproduce is ignorant. Anxiety and depression are very natural feelings that people can have through their lives. Having either of these does not take away their right to procreate, all due respect.