Looks like both "wings" co-opted May Day and tried to politicize it. When I was a kid, we made May baskets and filled them with candy and left them on the doorstep of people we liked in the nighborhood. A few years ago, we revived May Day at the Museum where I worked, doing dancing around the May Pole and making May baskets to bring home with candy and little gifts. Sounds a lot more fun than Workers Unite!
Jerry