It is not just Obama. It is the entire political left tolerating an authoritarian wing that says not only “we’re good, smart, rational, tolerant, moral - and you’re stupid, evil, crazy” BUT “we’re so good, and you’re so evil, we don’t just have to ignore you or mock you but physically attack you for daring to do anything but cower and hide”.
Hmmm. Yes, there is malpractice to go around. Obama seems to have perfected it. The fact that it was “racist” to criticize him made the reaction all the more disruptive.