All of the vocal, only matter exists, scientists say that people experiencing angels is just a case of delusion.

Those are not scientists.

Science does not prove things don't exist.

It only can work with what it can observe. If they have not found a way to observe it then it can prove nothing.

So while a lot of so-called scientists claim something doesn't exist because they have seen no evidence of it, that is not how science works.

The scientific method only applies to observable, and repeatable data.

:)

A lot of appeal to authority fallacy actions impact us when we buy into a "scientist" telling us what doesn't exist.