I don't think people get that you can be racist against yourself or other people of your own skin colour and it is called Internalized Racism.
en.wikipedia.org
It's like if you are gay and you hate yourself because of it, that is Internalized homophobia or if you hate yourself and other members of your own gender, then that is Internalized sexism.
So, it's still racism, no matter if you think otherwise. It may not be looked at as such since you are basically making fun of yourself, but you know that making fun of yourself just means you're insecure and you think you have no self worth.