First, so what if your contention was true ... that everyone else on here feels the same way? How would that affect YOU? You would still be a self-loathing loser, even if everyone else was, too.
Second, no, it doesn't mean that is true of everyone else. They're bitching about things like the government. They aren't, for example, interacting with the government on here and being told by the government that no one wants them around. That's completely different than you choosing to attempt to socialize with, and prove/defend yourself to, people who hate you and don't want you around.
Use all your down time to better yourself .. get educated, acquire skills that can lift you up out of your job where you sit around doing nothing but posting to people who hate you. If these people were the total losers you make them out to be, why would you want to be around them? Why would you keep seeking to explain yourself to them? It's because you think you're a total loser, too. And you just want to fit in ANYWHERE. Or at least, be respected ... by losers.
Go away. Find something better to do to better yourself. Under all your aliases.