If one out of every one hundred people are unhappy with their lives, the other 99 don't justify the one's suffering

To a certain degree this is already existent in our modern world. Much of our technology, clothes etc... (including technology used for e.g. medical devices) is manufactured under inhumane conditions and it's much more than 1 out of 100 people who suffer for our modern lifestyle/happiness. And most people seem to be okay with that. So creating a new life (in my case in a western society) and trying to get better lifes for others seems to be less damaging than just doing nothing and not having children.

The absence of suffering is good

If the absence of suffering is good then a person who experiences no good moments in his/her life and has no reason to be happy, but also not experiences any negative things/has no diseases, should be happy/have a good life due to the absence of something bad. In my opinion that is not the case and a person like that would probably just fell "meh" or neutral.