Unless you want to take out a whole bunch of them. Swarm of nanosats with some kind of miniexplosives or even just one-use engines to force deorbiting would probably still be more efficient, unless…
Unless you want to go for geostationary. A real crowd of satellitrs which have a feature of always looking at the same part of the Earth. While it would be very easy to send a boom device to low earth orbit (also very crowded), erasing a bunch of satellites there would be a temporary inconvenience (let’s not talk about Kessler) since a lot of what’s important is either a global constellation (starlink, gps) or has redundancies (earth observation comes to mind). But explode a nuke in the geostationary over the US and suddenly America has no sat TV/radio, no weather sat coverage and it’s harder to patch up than “just” replacing missing nodes of a constellation.