Boys, you are full of it. Greenface upsetting the Irish? Come on, lay off the stupid, hurtful stereotypes.

When you are beat you are beat, and when you are wrong, you are wrong.

There is no defense for any white person performing in blackface in "historic traditional contexts" like this in today's world. Deal with it. If you love the tradition, you will find a way to renew it in a way that is respectful of all people, not just your own.