He wanted a race war and he didn't get it
He wanted to inspire all the moderate right, he didn't get it
He wanted race relations to get worse, everyone is in care-bear mode

so, meh

How do I go about getting gun control? Hmm, do I support grassroots political movements and let democracy work, or do I murder a bunch of people as publicly as possible and pretend to be Islamophobic to own the right?

Not buying it. This sounds like what you'd say if you wanted to manipulate the emotions of the people who care that innocents were killed, and didn't want them to consider making any changes whatsoever.