Why victims might reject liberty in favor of social justice

I found the Parkland father comment directed at Kavanaugh to be most telling: He said something to the effect that Kavanaugh's life wasn't ruined by slamming him in his confirmation process and the media because he still has his family, supreme court job or not. The implication seems to be that because Kavanaugh supports gun rights, he is (partially?) responsible for shootings such as the Parkland shooting and therefore he should feel (partly?) responsible for the loss experienced by people who lost loved ones in shootings.

This is terrible logic, which implies that judges, legislatures, and others should not allow themselves to explore reasoning that allows for guns to be legal, and if they do the blood of shootings is on their hands. In other words, they expect everyone to lie and/or rationalize whatever laws they can make, pass, and defend against guns despite the 2nd amendment and the spirit of liberty behind it. These people simply reject liberty, maybe because they have no faith in it after losing loved ones, etc. but how can we accept the socialist prerogative to fight liberty by legitimating unfair tactics to subvert it?

In other words, if social-justice becomes an enemy to liberty and democracy, what can or should be done to secure liberty and democracy against authoritarian approaches to social-justice, social-economics, etc.?