Haude ko bhai, there are several things in life which cannot be changed. for example khas language cannot be replaced by any other language. it is impossible. it is just like english cannot be replaced by any other as a international language. yes it is sad but that is how this world works, always the majority wins. to adress your issue of minorities not getting equal privileges we first need to get rid of the monarchy. this is a institution that believes bahuns and chettris are superior than other. as long as there is this monarchy in nepal we can never get anywhere as far as ethnic equality is concerned. imagine our king or queen being newar , gurung rai or madhesi? it is never going to happen. imagine our president being one of these ethnicities. it is possible. but again in a democracy leaders get chosen what the majority wants and unfortunately bahuns and chettris are majority. so they will always have upper hand whether we like it not. and also khas language cannot be replaced by any other language it is too late (hundreds of years late) however we can promote and preserve other languages so that they coexist comfortably