The Summer Ceded to Caesar?

In an earlier post I wondered why the Winter Sun God, e.g. Jesus or Osiris, doesn't have a summer counterpart in the western world. I wondered if, perhaps, the summer sun gods had been replaced with the state and its rulers.

Indeed, in the US holiday calendar, the summer holidays, Memorial Day, The 4th of July, and Labor Day are all civic holidays. The autumn holiday, Thanksgiving, is a blend. Christmas is an almost totally religious holiday, except for the commercial aspects of it, then Easter is so religious it's mostly celebrated only by religious people and just as Jesus dies on the cross, the religious calendar terminates.