We have these settings on our server:
#Percentage of how likely normal,non-zombie villages are to spawn. default: 0
#Range: 0 ~ 100
vanillaVillageChance = 70
#Set higher to increase the generated population of the hostile village, default: 5
#Range: 1 ~ 100
hostilePopulationSize = 5

And yet every single village is hostile.

It could be because Terraforged is also trying to set village spawn ? Unsure.

hostilevillages-1.8-1.16.5
TerraForged-1.16.5-0.2.10
forge-1.16.5-36.1.12-installer

Also, many of the village mobs have no AI - they just stand there and do nothing, even when you hit them.
latest.log

Did you set allowVanillaVillagerSpawn to true? else no villagers will spawn and they get replaced with mobs.
Which mobs soecifically do not attack?

I had this problem too, I thought that simply setting the number above 0 would work, not realizing there was a config option to allow them to spawn in the first place. Make sure it's set to true and it should work.