Have you ever stopped to realize a Constitution can be wrong? A Countries Constitution is a law like any other, and like all laws it is going to be flawed in some capacity. The only thing that makes it unique is that everybody has agreed upon the method upon which it can be changed, a method that is much more than the requirements of any other law (for good reason).
Laws can be wrong and usually when they are wrong they are eventually fixed. Many countries in the past have done it and continue to do it. Ireland did it in 2015 when they amended their constitution to legalize same-sex marriage, a provision that was initially written as illegal in their constitution.
The point is, there is nothing magical about a country's constitution. Like with Irelands having banning Same-Sex marriage before amendment, constitutions can be wrong and the USA Constitution definitely has its fair share of things that need to be fixed.