Well this is all nice and dandy. I wouldn't kick you for a 300 ping, first and foremost. I would however, kick you for a 500-1000 ping that destroys everyone's experience. You're telling me here that you can't be blamed for your high ping, well I can't be blamed for performing my moderating duty and ensuring the rest of the playerbase has a good time in our server.
Anyways, I see this report as simple hate talk coming from your clan, but I'd advise you to go put off your teen frustrations on someone of your own age or mentality, since I indeed have no intend of arguing with you. For any further questions about your ping and why you're being kicked for it, you may refer to the server rules.