Being unable to farm because your renter trash alliance can’t secure its space is not bullying. Nullsec is a PvP area and you should expect to face PvP threats there. The fact that those threats are more powerful than some players is a feature, not a bug.
there is no counter for cloaky afk campers.
Of course there is. PvE in a fleet of PvP-fit ships at all times. Do not farm solo, do not farm in PvE ships that can’t survive a PvP fight, and use your MJD to constantly move around faster than a cloaked ship can pursue you to get into tackle range. If you have a 100-man PvP fleet sitting next to you in the PvE site then you have made yourself immune to most threats and the AFK camper is just an irrelevant name in local that can do nothing to hurt you.
If you’re really paranoid you can even limit your farming activities to the sites that have to be scanned down. If the AFK camper goes active and starts hunting you will see their scan probes on d-scan and see their ship when it decloaks to activate the gate.
TL;DR: AFK camping is only a threat to renter trash who think that because they’ve figured out how to defeat the NPCs they’re entitled to infinite zero-risk farming and an effortless “counter” to every PvP threat so they can go back to farming.