I don't see being bitter/angry - so long as it's not consuming you entirely - as being a bad thing.

I actually agree. But I see a lot of people taking it too far. Hell, including myself. My heart says that the ruling classes should be hated with the heat of a thousand suns, but my brain tells me that this will only be bad for me.

They need to be driven out. It needs to be clear to them that, you don't get to do what you have done, and ever be allowed to do it again.

At the very least.