This is shockingly easier to do than you might think. If your goal is just Kessler syndrome, space terrorism is incredibly easy. Almost any guerilla organization with basic fabrication capability has the means to deny access to space for the foreseeable future.
Targeting an individual object in space and destroying it is much harder.
If this happens, all of the Kerbal people need to sign up to launch space flak into orbit.
This is shockingly easier to do than you might think. If your goal is just Kessler syndrome, space terrorism is incredibly easy. Almost any guerilla organization with basic fabrication capability has the means to deny access to space for the foreseeable future.
Targeting an individual object in space and destroying it is much harder.
Scifi How to Blow up a Pipeline would go so hard lol
Doing a reverse Marco Inaros lol