The answer is that he's pushing 40 and it only takes one look at Josh to see that he is genetic refuse. Even if he loses weight he will still look more like a pig than a man. There's no universe where he gets female attention without doing shit like this. Because he is a gamma male, the attention itself is very important to him - he's essentially looking for a bpd mommy (or a series of mommies).
A lot of men are pathetic like this, unfortunately - so Null can look around at all the other simps and, I guess, trick himself into thinking he's not pathetic for banning everybody who criticizes him over it.