Weren't the two recent theater shootings done by white guys? Why doesn't America get mad at a white guy that kills 20 people but want to start WW3 if a dark person does it?
I can't speak to what "America" wants, but that's rather far removed from what I said.
Besideswhich,
if there is a WW3, I am pretty sure it will be waged between white people (more specifically, white leaders). E.g., Putin vs. the next POTUS or somesuch scenario. The Chinese have their problems but they're happy to have such a booming economy; it's simply not in their best interests to try and wage nuclear war against the west.
FWIW, I despise any looney, regardless of his ethnicity, who goes and shoots up and/or bombs a bunch of civilians.
Just the same, I think it's utterly foolish to ignore Al Qaeda and ISIS's proclamations of "doing serious harm" to Americans on U.S. soil; the latter, in particular, means what it says and does what it claims. And theatres full of movie-goers would make an easy target for them to make good on their threats.
That's what it comes down to. The white guys who do such things don't advertise what they're going to do ahead of time, but the Muslims DO.
To that end, I have NO problem singling out some shifty-eyed guy wearing Muslim garb and muttering
Allahuackbar to himself at the concession stand
By the same token, if I spot a white guy doing something weird, I'll report him, too ... but you can understand that, statistically speaking, the mumbling Muslim is more likely to be a threat than your typical white dude, at least in my neighborhood (near Charlotte, NC).