It was hard to think about Donald Trump last week while relaxing in a comfortable chair 50 yards from the beach on the French Riviera. As I took a sip from a glass of Côtes du Rhône and went through my notes, I caught a stray snippet of conversation between a man and woman walking on the sidewalk adjacent to an apparently “clothing optional” beach. “Did you hear what he said?” the woman asked, impeccably dressed in a red and black chiffon evening gown. “What?” replied the man, who was wearing a Brion Tuxedo with a claret-colored cummerbund.  “’Six genders. Real hater on Jesus,’” she said, quoting Trump’s attack on James Talarico, the Democratic Senate candidate from Texas. “He mispronounced ‘vegan’ as ‘vagan.’” “Enough. Please . . .” By then the couple was out of earshot, but the man’s “enough please” comment lingered.  I was in Cannes to attend the 79th annual film festival with “The First 100,” a documentary I produced that chronicles the first hundred days of Trump’s second term. Along with our …