Sure. But the societal losses of a vast amount of people getting scammed might in general be more important your individual wish for freedom to run anything you want on your device. I think there are important tradeoffs to be made, and that we have to acknowledge that many people in society less technically skilled might suffer from serious consequences in your proposed model of computation.
I say let them be scammed. Idiocy only grows if it's not resisted. People don't learn if they don't see the consequences. Otherwise it'll just make society head into an authoritarian socialist hellhole... not that it wasn't already going in that direction.