If you join a group, knowing that you can only be a sub-section of the group, then discrimination is expected. If you join a group and are told that you can join in most things, but not all, then discrimination is still what you chose. But, if you join a group and are not told in what areas you may or may not participate, then discrimination is occuring to which you have not agreed. Of course, if you are not black, you do not notice when a black person is discriminated against. If you are not an Orthodox Jew neither will you notice when things are not "kosher" for them. Being aware of discrimination and doing nothing about it, is the same as being the discriminator. Isolationism is not a policy, but a cop-out. Eventually you will have to join the war, and you will have to make it known which side you are on.