It's the same reason people try to get each other fired, "deplatformed" or ostracized for off-handed remarks, relatively mainstream opinions or even for supporting the wrong side of a divisive issue years in the past.
People are very tribal, the Anglosphere is highly politicized and it's a lot easier to make a snap judgment and label someone as part of an enemy tribe than it is to deal with nuanced statements.
People are very tribal, the Anglosphere is highly politicized and it's a lot easier to make a snap judgment and label someone as part of an enemy tribe than it is to deal with nuanced statements.