You need to get him involved, make him see that just sitting around and being depressed just helps the oppressors win.
He needs to go door to door this summer for some candidate of his choice. It doesn’t need to be a person running for President or Senator or even Congress (although ALL congress critters are up for re-election this year, so your grandson’s got at least on race in his area); just GET INVOLVED.
Besides, he’s young, he’s got the energy and stamina that us older people wish we still had.
Sign him up here, at the very least. Especially if he’s serious-minded. He’ll like it!