Tell them if they don't fight Putin, they will be fighting the rest of the world.
The only way to prevent full out war is if the Russian people rise up. Putin is not considering their future at all. He is old and going out with a bang and taking the whole country with him, and Europe is done appeasing. Kicking Russia out of Swift has the direct implication that many European nations are now war-time economies. Basic things like heating will require dratistic government interventions. Defense spendings are going up drastically over night. Europe is effectively mobilizing in the background. And how could we not? He is not going to stop at Ukraine. He is coming for us all.
WWIII has started and the only thing that can stop it is if the Russian people prevent it. If they stand up. Otherwise, my safety, your safety, the safety of your friends and families is not garantueed. Otherwise it becomes a choice of a whole continent enslaved by one man -or- a whole continent destroyed.
Europe does not believe he will stop at Ukraine. Consider the implications, please. Tell your family & friends. His behavior is too erradic. The basic assumption is that war is inevitable.