all golems are garbage vs exos. especially botnet which is meant to kill normal fleet ships.
I'm not sure I would say that.
Armored has enough durability (even by golem standards) that it could stand some punishment and probably get out alive, short of being out "golemed" themselves. Heck, I don't think any of the Mk. V starships are more durable than the armored golem (I could be wrong, but I think this is the case).
The artillery golem has sheer base damage on its side, and of course amazing range, giving it use in exos. The cursed golem has amazing range and a good dps, also giving it such use. Both are somewhat fragile though, so you gotta make sure you manage them properly.
Hive golem produces so many drones/wasps/whatever they are called, each with decent dps, that a fully loaded one would actually be a pretty good threat to most exos.