Impeachment + acquittal and open trials aren't punishment. They are the very opposite - they show how we make a show of justice for the elites, while doing nothing practical. I can promise you that nothing substantial will come of all these trials - he will at the very worse have to pay some small percentage of his huge fortune.
Oh but that's part of the fiction and the rigging. If he were a poor non-white person, he'd have been in prison for the last 30+ years, or after whenever his first swindle and self-aggrandizing fraud happened.
Another way to look at it is that an elite mired in so much corruption and antisocial behavior was rewarded by being elected POTUS and allowed to finish his term and orchestrate an insurrection without consequence.