GOP didn't learn from 2012
It was a lesson that was supposed to be learned from '12 for Republicans to better reach out to Latinos, blacks, etc. Romney won 61% of the white vote and it wasn't enough to win outright. America has changed so much since 1988 when Bush Sr. won 400+ electoral votes and 61% of the white vote.
The point is that the Republican Party was to reach out and build bridges if they wanted a chance again at winning the Whitehouse. Instead, they got Trump.
Trump. Build a wall along the Mexican border, Trump.
Until Republicans eschew the tea party movement and move moderate, they'll never win again.