These are not Leftists. They are anti-Americans promoting and defending America’s enemies in a war. They will likely do the same in a future war.
They are domestic enemies.
Yes, they are leftists. Have you been under a rock?
Did any one of the quoted posts provide a specific reason for their opposition? One I read seemed to e angry at linking football to war. That person has a reasonable take but doesn’t quite get the idea of a service school honoring its forebearers. Army does it at Army Navy Game every year when they wear a Division or special unit patch. But I stiil don’t know what the other posters are objecting to.