Nixon won because the “Silent Majority” voted for him. I can remember that after Watergate, the “Silent Majority” remained silent to the point where you could ask anyone if they voted for Nixon and no one would admit it.
I see the same thing lining up this year. People only have one real choice in Trump but because of public shaming of Americans who still care about this country, the “silent majority” will rise but the vast amount of those folks will never admit they plan on voting for him.
I lived in Florida at that time and all the adults I knew voted for Wallace.