Certainly I can accept the notion that the benefits can be totally worth the price for some people, but when you say...

This just speaks for the fact that disinformation is irresponsible and dangerous - not only because it's false, but specially because it's simplistic. And then the realization becomes something like "This is false, hence everything is false". But this doesn't sound like a good method... understandable in the moment the lie dawns on you, but dangerous nonetheless.

More of the same... If you realize you are ingesting rubbish, it's reasonable to ingest less of it - not to use it as an alibi for not caring about what you ingest.

And again I understand that the contrary (meek submission to disinformation, shutting down awareness, etc) sounds much worse, I'm just saying there's more than two ways, and the ones in the middle are easier to recommend to anyone.