I don't really believe this tbh. That's not to say that life isn't way worse for some people than it is for others, but the idea of another person's life being bliss doesn't really follow from that. Perhaps I'm coping, but based upon my own admittedly limited knowledge of emotions and human behavior, it seems that the more supposed pleasure one is exposed to, the less it even appears as good or pleasurable at all.
Do you believe that most normies ever look back on their past relationships and think to themselves how fortunate they are to have had those experiences? I don't. Of course there must be exceptions, but generally people most appreciate and desire whatever it is that they don't have. Similarly, I can't cope with my lifelong inceldom by being grateful that I'm not starving, this doesn't feel like a true "good" to me, but rather it's neutral. Of course I know that logically my abundance of food is a good thing in that it's preferable to experiencing hunger, but life doesn't allow me the pleasure of enjoying or truly appreciating things that feel like the status quo, or to put another way, a state of affairs that without which I would experience suffering, as the lack pain doesn't feel good unless you're in the process of relieving it.