If there's anything liberals cannot stand, it is being defied. They claim to love rebellion and disobedience, but will have a stroke when they are the ones being disobeyed.
It's not that Kyle greased some of their footsoldiers, or that he used a scary ass salt gun, or that he supported the cops; it's that he showed the world they are not invincible.
Remember the end of 300, when Xerxes is cut by a spear and horrified to see his own blood (and thus proving his mortality and disproving his divinity)? THAT is how liberals feel right now. Kyle is proof that their plans for revenge on Trump country will not go as smoothly as they expected.
>"lol, men with guns play army and have tiny peepee..."
>"AAAAA! HE USED A GUN! DOMESTIC TERRORIST!"