This might be a weird question, but if you are American, do you think Biden is a smart man with motives beyond his own gain? Does he really try to make USA better and works for the common person?
Note: The US's interests are not necessarily aligned with the interest of the people in the US. Also, note: I don't necessarily think this applies to Trump; I think it applies to Biden because he probably largely plays along with the institutions which exist to preserve the US's interests, while Trump didn't.
I'm not educated on the matter, all this might be wrong. I'm just some guy on the internet who pays some attention to politics. I'm also not American, I look at both the US and Russia from the outside.