I don't like them either, but you can't get rid of them in the initial game setup, on other planets (iirc)
I'm having this weird bug that may or may not be related... if I mark up a bunch of cliffs for decon, and I have ALL the explosives on the planet in my inventory, but some are in bot range, they get claimed by the bot network, then my personal bots won't work on it. Turrets and bot network don't have access to any explosives.
Interesting artifact, is that the bot is still dispatched, empty, flies to about 20 tiles from the target, and then returns.