I suggest larken Rose's Candles in the Dark talks.

The thing is, you will never change someone's feelings on a matter with logic. Especially not right away.

They need to be given more facts, and then allowed time to process them.

I mean, if we all worked on facts, the Infernal Revolting Syndicate and the nonFederal noReserves Bankcartel would be a smouldering pile of rubble. Just for their KNOWN evil things they have done. Still most 'mericans will say they are a necessary evil.

But, then there is the step beyond this.
Like adopting crypto-currencies. Burning down the banks would have been great, however, it just delays the inevitable. Switching to cryptos utterly destroys banks, and all bank-like practices. In 20 years, it will be easier to find 8 track tapes then it will to find a bank.

When talking to people, just remember you are planting seeds.