When you give a mouse a cookie, he'll want a glass of milk.

When you give some violent thugs a slap on the wrist, they will burn your shit to the ground.

Eventually they will bit the hand that protects them because nothing in their history tells them that they will get in trouble for it.
Sooner or later some bigshot leftist Democrat is going to get seriously hurt by their little out-of-control minions, and is going to be horribly upset because "I'm one of you!"

And the other leftists will do everything they can to excuse it, and keep the injured(or possibly family of the deceased) from insisting 'Something must be done about this!'  Because if they do, their minions will burn their shit down, and they know it(that's not counting the leftists who're just fine with everybody's shit being burned, because 'Private property is bad!  Equality before our law!')

And everybody else will be making sure they're loaded, and a helluva lot more people will take some shooting lessons and get carry permits.  Because when the minions show up to destroy their business or home, or attack them in the streets, they want the means to to fight back.

A hot civil war is going to be very damned bad.  But I doubt if the leftists understand fully what they'll unleash, and too many of those that do probably want it.