During the turbulent times that United States is going through, it is appropriate to remember the Third Basic Law of human stupidity as defined by Carlo M. Cipolla : « Is stupid a person who causes a loss to another person or a group of other persons while not deriving any benefit for himself and possibly even inflicting losses on himself ». Losses can be of all kinds, such as a rapid decrease in the support network, a greater difficulty in accessing financial resources, loss of credibility or even possible civil lawsuits for inappropriate acts.
According to Mr Cipolla, « the destructive potential of stupid people depends on two main factors. First, the genetic factor […] and second, the position of power and eminence in society ». « Essentially, stupid people are dangerous because people have difficulty imagining and understanding unreasonable behaviour ».
To know a bit more on the subject : human behaviour.