Is it normal (or at least common) to be totally misanthropic?

People are spiteful and petty because they are insecure. They need to try to undermine someone else because they are not happy with themselves for some reason. It probably stems from the ubiquitous belief that we are not good enough. It's a rare person who has never had that fear, and negative behavior is one way of trying to feel better. So much of this goes on unconsciously that one is often not aware of the deeper reasons for behaving negatively. It might be that they grew up with an overbearing father. Maybe they were told all their life they were a failure. Perhaps it’s masking something else. Most people aren’t jerks because they want to be, but because they don’t know any other way out. Chances are, if you can figure out the underlying cause, you’ll be more sympathetic, understanding, and in some cases, you could be the instrument of their deliverance. This is only my opinion on "Pettiness", but I work with jerks all day long and it seems like my theory is pretty accurate! Don't get frustrated, just try to understand why they act the way they do. But never let them derail your momentum!

More or less common, but certainly not healthy.
If you ment the list thing literally, please stop. If you only focus on the bad things in people of course you will end up a misanthropist. But it's really just a waste of your precious lifetime. I'm not saying you should close your eyes to all the things that are wrong with humanity and the first world. But if you do nothing to change them and loose faith in the future you'll just end up embittered.

You probably figured that out already and I know it's hard to change. I love that you work on yourself and will go to counselling. I hope you'll find your way to happiness.

I realised that the world is populated mostly by idiots when was 18,& since then Iv`e wondered how the human race has survived, being so stupid.

It's common for people claim to be misanthropic. But the fact that they go on the net and talk to others about it counts them out to begin with.

A misanthropic person isn't going to ask for anothers opinion lol.

Are you living in a small town down South? Maybe you could try a bigger city like Atlanta or a college town like Athens? Then again if you felt the same way in Australia the problem could be something else entirely.

Way to find your place in the world!
Perhaps if you got yourself out of "the bible belt" and to someplace where people are a tiny bit better educated, inquisitive and thoughtful you wouldn't have to hate them all so much.