Yeah, that’s part of it, but so too is decades of Democrat-importing mass immigration. As Nevada has gotten less white and more Hispanic, GOP prospects at the Presidential level in the state have worsened. That will continue.
It’d be interesting to see how the white vote in the state broke though. In 2010 the hapless Sharon Angle’s loss was largely and falsely attributed to doing so poorly with Hispanics. But it was really her poor showing with whites that sunk her, as Governor Sandoval cruised to reelection by winning a significantly higher share of whites. So I wonder how Trump and Heck did with whites. Did they underpierform with whites or were they truly swamped by Hispanics? If the former, then it offers some hope for doing better next time. If the latter then we should get used to it.
Lots of whites left and went back home after the crash in 2008. Hispanics did not.
Looking at the map, it is Clark County that needs to flip. With so many unions Trump is not popular in Vegas. These are service unions so jobs can’t be exported.