Andrew, you do often come across as someone who is resentful, intolerant, often spiteful, takes offence easily and with a grudge against the world.
I think if you were a nicer person, you know, showed kindness, tolerance, humility (unfashionable traits as they are these days), then you might get invited to more events.
I don't mean that in any kind of snide or sarcastic way. I'm serious.