Should he have been fired?

ITT a bunch of privileged middle to upper middle class white men advocate the merit of racism categorized as an opinion and thus allowed to exist. Which, in turn, advocates for the allowance for vocalized -isms and phobias classifying certain communities of humans as inferior.

Let me correct a few assumptions for you - I grew up in a single parent household that made less than 14k a year. I was the only white male in my preschool class for two years, and there was only one white female and one hispanic boy. I was in government housing until I was 8 and a predominantly black trailer park for three years after that. My family's only privilege has been to pull ourselves from the desperate brink of poverty to where I am now, and I did it entirely alone on my own merits with no assistance. My first "real" job was working for six years with the deaf and blind.

I have little tolerance and less respect for the sniveling about the fairness of life, the horrible disrespect of others and how much the universe owes anyone for their past. The history of this country is founded on people who came over with nothing and made a life for themselves. The American dream is that anyone with guts to try can make it.

Racism exists. Classism exists. Religious persecution exists. Obstacles. Exist. The universe does not exist to affirm you, regardless of who you are. There will always be someone who thinks they're better than you for some reason most likely out of your control, let alone theirs. Sometimes they may even be right.

The answer to ignorance is always education. Let people share their views, their fears, their concerns. Stifling it is never the answer, because until you know the idiotic crap that's going through their minds you have no idea what you're dealing with and where to begin finding commonality and moving towards acceptance.

Your entire premise here is that by hushing people it'll all go away, or at least make you feel better because you can pretend it's gone.
How well has that worked so far? How well is that working for China?

We're not talking about liking Justin Bieber or MLP. We're talking about ostracizing black people to their own communities because they're black. Apparently ostracizing people for their thoughts is absolutely reprehensible but ostracizing people because of the color of their skin is, well, just an "unpopular opinion."

ITT: FrozNlite thinks black people are the only ones who "stick to their own" and that they don't do by choice.

The vast majority of every community sticks to what is familiar to it. That's why you have portions of towns that are considered asian, black, latino, jewish, whatever. Pretending that people don't have a natural inclination to stay within their comfort zone and should never speak of it because it's a foul and hideous thing is absurd. There are in fact, statistically, more black people who are afraid to mix with white people than there are white people afraid to mix with black. But both sides exist. Both sides fear each other because of things have happened in the past, and trying to prevent people from mentioning it isn't a cure.

If anything it should be talked about so people can ask the single most important question we all learn as kids; Why?
Because if the other person's reasoning isn't sound, you learn for yourself the basis of such silly fears and feel better making your own informed decision rather than just doing what you've had subtly reinforced.