“Words have consequences.” That’s the message Natan Levy passed along to an online troll after he offered to come to Las Vegas and clash with the UFC veteran to defend well-known white supremacist Nick Fuentes. While altercations erupt on social media quite often, the 31-year-old lightweight — who moved from Israel to the United States to pursue his MMA career — took this particular challenge a little more seriously. “A lot of people talking s*** online, allow themselves to say really disgusting things about Jewish people, other religions, different colors, everything that’s not white, they allow themselves to speak in...