The USA can't reform because vested interests of various kinds will block all reform even when it would be to their ultimate long-term benefit. More importantly, representative democracy actually ensures the least-fit are elected because they will appeal to the greatest number of voters. This is because voters are ignorant and foolish and support candidates with whom they can identify. Thus representative democracy ensures that ignorant foolish people elect ignorant venal foolish politicians. We cannot be surprised at the outcomes delivered by such an unfit-for-purpose arrangement. Trump and the repellent Republican Party are thus merely symptoms of an underlying failure - the very same failure that delivered Brexit, Modi, Orban, Babis, Erdogan, Bolsonaro et al.