Donald Trump now looks set to be the Republican presidential nominee. So for those of us appalled by this prospect — what are we supposed to do?

Well, not what the leaders of the Republican Party are doing. They’re going down meekly and hoping for a quiet convention. They seem blithely unaware that this is a Joe McCarthy moment. People will be judged by where they stood at this time. Those who walked with Trump will be tainted forever after for the degradation of standards and the general election slaughter.

The better course for all of us — Republican, Democrat and independent — is to step back and take the long view, and to begin building for that. This election — not only the Trump phenomenon but the rise of Bernie Sanders, also — has reminded us how much pain there is in this country. According to a Pew Research poll, 75 percent of Trump voters say that life has gotten worse for people like them over the last half century.

This declinism intertwines with other horrible social statistics. The suicide rate has surged to a 30-year high — a sure sign of rampant social isolation. A record number of Americans believe the American dream is out of reach. And for millennials, social trust is at historic lows.