Support the pillar.
There are numerous techniques of similar kind, and just being a craftsman, Ji Jue could think of no fewer than a dozen. Among them, the simplest and undoubtedly the most heartless one was "staking a life." Kill about ten thousand people, and all problems would be gone.
The Evil Cult wasn't morally high, but with such a huge gap and such a complex ritual, they simply couldn't do it. 'Sacrifice' wasn't something you could manage with frozen chicken or duck, and it had to meet certain standards, butchered on the spot... How could you possibly get more than ten thousand live people silently out of the Federation's hands, and besides, why bother?
Even if they were all killed for the furnace, they could create six or seven Mutant Heavenly Artisans!
When brute force wasn't an option, they had to use some skill.