The take actions that they do because liberals are really the ones full of hate (with exceptions of course)
They can't listen to dissenting opinions, they threaten violence, they riot, they do damage to property, they're the ones to scream and cry at the top of their lungs about how offended they are, they're professional victims. As a party, it's the only power they have. They need wedge issues to survive in the political arena.
Furthermore, when you're a member of a demographic they control 97/3, and they must absolutely maintain that dominance lest they become irrelevant, then they do everything plausible to discredit and silence you. If you're a conservative African American, they call you Uncle Tom (they need to keep it simple)
Good and smart people can and do disagree, and there are liberals that believe in expanding social causes & government solutions that represent their demographic well, but they're the exception and not the norm.
The new norm for them is to be gleefully happy when there's a fire at Trump Tower, or to think they're right about life because Manafort was indicted on tax evasion or Diamond & Stone get censored on FaceBook
Our media and Hollywood have molded this toxic environment, people who have a much larger platform than they deserve