The ramp leading up to Genso-Earth is narrow and has high standards for those lingering in the process. The small number mentioned who made it into the new Earth 3 weeks ago were those who were at the front line and pre-registered by Gensokyo, such as a select number of vampires and other immortals and important leader figures.
The parallel Earth spheres are personal constructs made by cultivators who wanted their own personal space to work in. They can do whatever they like in there, and their influence on the process is dependent on how well they sync with it. Their investment into the new central Earth varies.
The shadow Earth is the karmic dimensions upheld by various negative beings, like the "gay templars" and different types of groups self-identifying as nazis, or other secret "intelligence" agencies. Their ideologies and technologies are incompatible with the 5D Earth and for this reason they have - just today - completely detached from the ramp leading up to Genso-Earth.
They still influence it from a distance, in the hopes of dragging some confused souls into their negative fate, but they have now already sealed their fate as one of destruction. In there, they believe themselves to be masters of the Earth, and that they are "on the right side of history". They will play out their WW3 plans exactly as they want them, with glowie agencies from all over the world going to war against each other, for the prize of a completely ruined planet where they will later slowly degrade into something barely human-looking as they are exposed to the toxins they have spread into their own system.
You don't like our process? You are free to join them, no one is stopping you from choosing this fate. Go on.
They are right now extremely fanatical in their approach believing themselves to have made "a breakthrough" in support of their own world order. Soon they will also experience the nuclear war they believe to be real and possible. In our timeline, nukes are a Psyop created by Illuminati and not real. In their timeline, because no one in there had access to the top level secret documents, they don't know that the science behind nukes are bunk and doesn't work. So they will manifest nukes and nuclear war by changing the laws of physics in their own dimension, and that is the destruction they seek.
If you feel fanatical spiritual presences, that is their influence from over there "the right side of history" where you can support abortion, racism, and nationalism all you want. Everyone will choose their own alignment now.