The problem is that there are groups that actively amplify the insane voices online to encourage chaos in Western countries.
It is easy to get swept into an information bubble where you end up exchanging messages/comments will like minded fools. In the old days such people were laughed at and mostly harmless. Dumb ideas, like vaccines causing autism, would not have as many ardent proponents without the internet. Humanity is not ready for the easy dissemination and siloing of information.