There are people who fight back: https://www.youtube.com/watch?v=EzedMdx6QG4 [1] (warning: nsfw audio, use headphones)

With that said, when your loved ones are facing mental health challenges that make them susceptible to fraud, someone needs to step in to assume a guardianship role. That's not to say the government has no role; they should be prosecuting these cases harder, but there is no magic bullet. Everyone could be doing a better job.

[1] Code that drives it: https://pastebin.com/r4L2ufkp