Good arguments to let my mom allow me to be Vegan?

I hate to offend when talking about this subject, as it brings the bad parts of people out. But I find it rather inappropriate to worry about the ethical making of cheese when millions of people are dying of malnutrition everyday. Innocent people are being killed everyday in Rwanda, Zaire, West Bank & Gaza, Burma/ Myanmar, Columbia and The Ivory Coast and all us Americans can worry about is the morality of eating cheese! Why don't we stop buying shoes and clothes from Chinese and Taiwanese factories where the treatment of kids is equal to that of dairy cows. C'mon, show some mercy.