England’s path to the final of Euro 2020 was beset from the beginning by the controversy over players “taking the knee”. While many fans apparently support the gesture, a sizeable minority object, and have expressed their dissatisfaction by booing. So far as I understand, the main reason these fans object is that they believe taking the knee is political, and want politics to be kept out of sport. They “just want to enjoy the game”, in other words.
It is an effective strategy to paint your sides' political actions as just decency or something as benign as being against bigotry.