Was going to make a post with a similar gist, but you beat me to it. This could definitely be a slippery slope. What makes this country great is the fact that we can disagree about things, yet peacefully coexist, and while naziism, racism, etc. are morally repugnant to most intelligent, thinking human beings, withholding services (that we are all able to enjoy) from these misguided souls, kind of brings us down to the same level of intolerance. What would be better imho is to not stoop to their level. Such tactics will only prolong the cycle of bias and hatred.While I think white supremacist groups are deplorable and disgusting, I am concerned when people start denying access to things based on what that individual believes to be morally repugnant.
While I'm not trying to make a direct comparison between the two, there are plenty of people here who say "Hooray that Tim Cook won't let these people use Apple pay", who also said "How dare Oregonian bakers not make a cake for a gay wedding."
I'm not sure I want to live in a country where people use economics to force their morality on others (even when I agree with their morality), and be honest, that's what Apple is doing here. And I've seen people twist any view that they don't believe in into "hate speech."
The intolerance of Neo-naziism and racism, etc. will never be stamped out by brute force. Education is the real solution.