What consists of a minority is of course contingent and relative. A group that is a minority in one setting can be the majority in another. In one situation a group can be the oppressed, in another 'they' (different individuals but of the same 'group') can be the oppressors. Unfortunately that's human nature, but it doesn't mean we have to just sit back and accept it.
If course it's also possible to overcome obstacles like these. Some people are very successful at doing so, but unfortunately others are not and shouldn't really have to.