system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why are tracor beams not used to rip smaller ships and fighters apart?

How come larger ships, like Star Destroyers, don't use multiple tractor beams to smash and crumble hostile targets in close proximity? Or at least hold them still to have an easier time blasting them? 

Second question; how come this technology isn't used onboard
 the ship as a defensive system against boarding parties / infiltrators?
gpt
The energy required to manipulate a ship in space with a tractor beam is equivalent to the energy required to power an engine that could move them at the same speed. That's an awful lot of lasers you could have fired instead.