Now, what do you think, can UFOs be linked to faith, God, and demons?

Of course, they can. There is even one version of what God is, based on the connection with aliens, which is not the most illogical, by the way. If extraterrestrial civilizations exist (and this is very likely, as is the fact that they do not exist), then it is not a fact that they are not at our level or a lower level of development. And if they can travel in space, then they may live so far away that they cannot reach us (it takes a very long time to fly thousands or tens of thousands of light-years). If they live relatively close, they could have flown here (let's assume that UFOs were true or not, but aliens did not show themselves), then it is probably just reconnaissance. But then it is strange why they have not revealed themselves for decades; perhaps these were several civilizations with similar levels of development. If their home planet is tens of thousands of light-years from Earth, and they still flew here, then this is either an incredibly developed civilization, or something like a "distant expedition." In any case, if aliens with spaceships exist and have flown to Earth, then in case of hostility, it is not impossible to defeat them (weapons of mass destruction, and even modern automatic weapons are not children's toys), and if they are at too high a level of development, so that we earthlings are unlikely to be able to do anything against them, then they probably do not need the Earth. Resources here will certainly be depleted in the foreseeable future, humanity cannot be the object of their hatred, and it also makes no sense for them to conduct experiments on us. In general, aliens may exist, but they are unlikely to be the infamous "flying saucers." I read that the photos with them are edited on a computer, and that this is done by not the last people in the same USA.

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Believing in God or in UFOs is everyone's business. But here's what I'll say:
I have two opinions about the origin of UFOs. The first is another civilization that is far ahead of us in development. They are studying the Earth and sometimes take people for detailed study. Why don't they make contact? If they make contact with us, they will tell us about themselves and their technologies. We, as a lower being, will ask them for various technologies, and we will not pass the "evolutionary course." The second opinion.

If this is a civilization that is far ahead of us in development, then it does not need to kidnap people for a detailed study of humanity.