That’s the problem. It’s up there. Getting it down requires you to get something of significant mass up there to provide that delta v to deorbit it, and even then you’re not entirely sure exactly where it will land. You could probably target a large country, but not a city.

Instead use all that feta v you need to get your “shoving device” and just send it direct.

To deorbit one of those satellites you need an icbm capability already