

If Trump is a Russian asset as we all believe then Putin will have irrefutable proof that would be able to put Trump in prison.
He’s also likely to have evidence of other crimes that everyone is pretty sure that he has done and is doing.
A lot of the publicly available stuff has a lack of evidence, a lack of motivation to get the evidence or a lack of will to impeach and prosecute a sitting president. It’s possible that Putin could release enough information to overcome those barriers.
In fairness, they are also betraying the poor people in the rich countries too. And everyone else who has kids and grand kids to inherit the mess.