In 2016, it was White men that were driving the support for Trump but from what I've seen online regarding "White men" and voting, it would seem that both parties believe they're losing the White male vote.
Instead, of shaming White men, perhaps either party could actually do what is in White men's interests to get his vote. Why is it only White men who get shamed to encourage their vote but non-Whites and Women get both parties buying their vote? Where's the benefit to White men in voting for either party?
This election is such a joke for White men. Neither party is on their side.
Left: "We hate white men!"
Right: "We don't hate white men."
But no one seems to be meaningfully courting white men. The left because they don't know how, and the right because they're still afraid of looking racist. But I haven't seen the shaming of which you speak from the right.