Most of them may have been blowhard wannabes, but they assaulted the Capitol because they did not like the results of the elections. And some people try to minimize the significance of it: after all they were harmless, too stupid, etc... As if it were not something important. And that's exactly what is doing a lasting harm to system. If after all, It's not that bad, why not do it again or do something similar next time.
It confirms how the U.S. is <deleted>#$% up! Including some posts In this thread! In other democratic countries, there would be no assault of Westminster, the Assemblée Nationale, or the Bundestag, in the hope of overturning elections. And in case it would have happened, no major political party would try to justify it, excuse it, or try to minimise its significance.