Why was the fraudulent presidential election of 2000 allowed to p as legitimate?

Nepotism was the English way when the original 13 colonies seperated from the yoke of taxation without representation. Nepotism, Titles of Nobility, and any sort of favoritism or in groups are totally unconstitutional. You cannot have a brother ratifying the election of his brother. How can this be a constitutional republic when it grows more and more like the royal monarchies of primalgenitor rule of europe that the united states was specifically set up to prevent?