Didn't quite say that. I specifically said nothing works without an unacceptably high bill afterwards. The bill is either in the Ammo you spent engaging the horde, or the repairs to the base you needed afterwards, or both. If you are the type of player or group who doesn't care about the bill because you are happy to spend as long as it takes to replenish or repair, then you'd not have an issue with demolishers. I am not. Since I am the group's miner and they removed my beloved surface boulders, I am not prepared to spend more than 1 to 2 days per in-game week bored out my skull down a hole just to foot the repair/ammo bill.
No one is fighting them in the same area where all their precious valuables are stored so it's not like it's game over if your base gets flattened. The point for me is the COST of engaging them. It's far far too high.
I hate to mod. It's my last resort. Anyways, new base design is underway and will soon be tested. I am 50-50 about whether it will work or not.