I really like and encourage critical thinking. But starting your "critical thinking" process by simply denying a election result is not my understanding of "critical thinking" it's more like a state of denial. There are people who simply claim there is no pandemic because there are no viruses in the first place. Thats not "critical thinking" that's just a straightforward lie. And this stuff somehow has to be controlled in the future. Otherwise the whole internet idea collapses in itself, because the people are not able to cope with the "information" aka "lies" they read.
//But i obligate to go back to the bitcoin price movement, instead of arguing over the internet.

As free people, we all have the right to think whatever we want and believe whatever we choose to, including denial. There is nothing illegal about choosing to believe something that is seen as false by 99% of the rest. When something truly sinister happens in the world, you'll be thankful for these overly suspicious conspiracy theory believers/non-believers.
Nothing has to be "controlled". We succeeded in surviving as a species for millions of years just fine without any control. In fact, religious control set us back a couple thousand years. That should be enough of a lesson right there to stop the idea of controlling anything. There is no need to control anything, just punish those who break the law and ignore the voices you don't agree with.
If enough people really get behind an idea or a person, there is probably some truth behind what they believe. Nothing in life is black or white. Everything is a shade of gray. What you have to ask is "why" so many people like Trump. Do you really believe they are all mentally ill? Critical thinking would be trying to understand what people see in Trump, not saying we must control something so people don't end up liking a guy like Trump.