He's not alone. There are a lot of Americans that feel if a politician doesn't perform 100% to their satisfaction, it's not worth voting for them to stop the other side from making things worse.
As for myself, finding the perfect politician is like finding the perfect woman (or mate) or that perfect job. It doesn't exist except for a few people. Since it doesn't exist, the best you can do is get as close as you can.
When issues are being discussed like the border, inflation, interest rates, labor shortage, I feel no guilt because as a voter, I did everything possible to make sure this didn't happen. Does that mean I thought Trump was my perfect politician? Not at all. There are several things he didn't do and several things he could have done I would have liked to see. But I thank God and voters like me for not getting into a covid crisis with somebody like Hillary leading the charge.