An interesting analysis about the role anger has to play in political loyalty and its adverse effects on democracy:
"Anger-filled political rhetoric is nothing new. From Andrew Johnson and Richard Nixon to Newt Gingrich, politicians have long known that angry voters are loyal voters. People will support their party’s candidates locally and nationally so long as they remain sufficiently outraged at the opposing party.
...
Angry people tend to negatively judge the source of their anger. So when politicians continually label each other with crude epithets and infuriate people by taking – or not taking – certain actions, the public responds by lowering their evaluations of Washington. Eventually, they question what government is even capable of.
...
Arguably more harmful for democracy, anger also makes people see supporters of the opposing political party as a threat to the country’s well-being."
From - Angry Americans: How political rage helps campaigns but hurts democracy
Is there anything we can do to stop casting our political opponents as "the enemy" and quench the flames of anger? Can we encourage solutions to challenges that transcend political identities for the common good of us all? If your own political will is motivated by anger, how can you channel that into something more productive and less demonizing of others? ...
Angry people tend to negatively judge the source of their anger. So when politicians continually label each other with crude epithets and infuriate people by taking – or not taking – certain actions, the public responds by lowering their evaluations of Washington. Eventually, they question what government is even capable of.
...
Arguably more harmful for democracy, anger also makes people see supporters of the opposing political party as a threat to the country’s well-being."
From - Angry Americans: How political rage helps campaigns but hurts democracy