This is a great point on how the world seems to have developed a deep sense of biases on just about everything and now we're left incapable of passing the "would only a cartoon villain do this" test. How is it ever possible to fix this, because we're quickly moving to a point where the most ridiculous of claims, that happen to fit with our biases, are instantly accepted as true and unshakable facts.
The problem is that real life is already stranger than fiction. The NSA actually tapped American phones and intercepted inter-datacenter links. Multiple major companies now have voice assistants that have been shown to send voice recordings to employees for review. Apple has used legal action to shut down repair shops. Real life is left incapable of passing the "would only a cartoon villain do this" test.
At the end of the day, we must remember that just because we can believe something to be true is not actually evidence in support of it being true. Even the most mundane of claims should not be taken on faith alone. We may not verify everything, but we shouldn't repeat or make serious decisions based on claims for which we have not seen compelling evidence, no matter how believable the may seem.
To even have hope of getting people to overcome confirmation bias and look at evidence, we need concise and convenient ways of presenting evidence. Fact checking is too much of a chore the way things are now.
