Chapter 870: So it's war.
The conclusion the group reached was that they couldn't.
I mean, they could do it, but they shouldn't. The reason? Victor was simply too strong and unknown. In any Era, information was an extremely important tool.
And the fact that NONE of the Gods present here knew that Victor was creating a futuristic society within Hell was reason enough to deter any actions from them.
Imagination was a very powerful tool, and Victor knew that. Because of this, he used this information very effectively. When he said he would punish the Demons who disobeyed him, he never 'explicitly' stated what the punishment would be. And these words were even more terrifying for the Demons because they vividly remembered the 'artwork' straight from Lovecraft's books that Lily had created.
No one wanted to become one of those.