I don't think any of this lobbying will make a difference. The NFL and Snyder are pretty firm on their stance here and the NFL's lawyers probably have all their bases covered.
Here's a pretty good article summarizing the origins of Redskin;
http://www.slate.com/blogs/lexicon_v...correctly.html
I'm of the opinion that you can personally take offense to most historical names if you choose to pick a timeline and context that suits your personal cause. I simply think there's more important things going on in the world to be overly invested in this topic.