This is misstated and abuses words. Both Edmund Burke and Abraham Lincoln , firm believers in Divine Providence, would disagree with you.
That God chose Trump implies absolutely nothing as to 'why"
The French Revolution was straight out of Hell but Burke also said it was Providence nonetheless.
Lincoln said the Civil War was utter horror but he also said
". "Woe unto the world because of offences! For it must needs be that offences come; but woe to that man by whom the offence cometh!" If we shall suppose that American slavery is one of those offences which, in the providence of God, must needs come, but which, having continued through His appointed time, He now wills to remove, and that He gives to both North and South, this terrible war, as the woe due to those by whom the offence came, shall we discern therein any departure from those divine attributes which the believers in a Living God always ascribe to Him?"
Of course not, and you start with a self-contradicting premise. Trump could be saint or sinner but that says nothing about WHY God would use him. Nothing.
I think Biden as a stupid and lazy sub-sub-par leader is a punishment. Biden has been around 50 years, most of which I've followed and when someone is surprised by things I've seen him do a 100 times,I think "he might be a fool but you are a bigger one for not knowing that"