All of humanity is connected through the same collective subconscious. Therefore if you have a truly evil person – not just any random murderer, but a truly evil person – then that person is constantly emitting very negative vibrations throughout the entire collective subconscious. Therefore they are holding back the liberation of humanity, just by their presence on the planet.
We have repeatedly said that the presence of lightworkers on this planet is crucial for the liberation process. Well, the presence of certain very evil people does the opposite of this and slows everything down. Therefore we support the death penalty for those people, if they are not willing to receive healing and are not willing to see and learn the perspectives of their victims.
Note that souls reincarnate, which makes the death penalty significantly less harsh than the death penalty would be if souls did not reincarnate. In some cases these people will be allowed to reincarnate, in some cases Source will actually decide to unmake their souls after their death, and in some cases they will go to the lower planes because they have literally sold their souls.
As for mental illness: unfortunately we think that your entire society is toxic. We think it’s logical that people develop so-called mental illnesses in such a society. Frankly we are surprised that not more people are mentally ill.
A lot of things that society encourages you to put in or onto your body are also toxic. It’s good to have a skeptical attitude, but in some cases these things are hard to avoid. One thing that helps very much is buying a water distiller, because there is stuff in tap water that we do not think is good for you. Crystals can also help with purifying water on an energetic level.