Well yeah, because Trump is a very bad person and a very risky choice to lead an important nation like the US. He'll also be our oldest ever president if he serves this full term, and even now shows clear signs of decline. We just went through that same thing, but with a person who was younger at the time of the election, and it's not good.

I think there are plenty of reasons to remain optimistic for the US on longer timescales, but for the next few years, this was a terrible outcome for which pessimism is warranted.