Political discourse can be rough in every democracy. Politics reflect our moral ideologies......who gets healthcare and who doesn't, are we going to protect the environment, are we going to properly fund education, are we going to invade other countries, etc.  The difference between the U.S. and every other advanced democracy is access to killing machines.  Our society has decided to glorify violence and have on-demand guns.  This is part of the price we pay. Don't blame the rhetoric.