Since I've never tried: do strike forces really disrupt wormhole camping?

Surprisingly, yes they do. They show up in a matter of seconds, and proceed to chase you around (which is enough distraction to allow anything less than an XC full of weapons to get through) until you a) leave or b) kill them, at which point more warp in. Also, if you go through a monitored WH very many times in a small amount of time, the strike forces tend to accumulate there, making it even less possible to disrupt trade in the wormhole. Honestly I'd rather try to camp a wormhole with turrets than one with a strikeforce.