Virtue signaling is an insult that you can for example use against greenwashing or against someone who pledged to donate a lot of money to some charity but actually donated none or much less.
Hypocrisy is also a form of virtue signaling.
It's also a term you can use against political opponents because it's much easier to speak well than to actually do good.
Refusing to negociate with criminals and help fund security seems like the proper long-term reaction for everyone.