Screwdrivers, bricks, and hammers are not designed to kill people. The only thing handguns are really good at is hurting/killing people.

Every law enforcement officer I've talked to has been in favor of more strict handgun laws; because handguns can so easily be concealed they make officers' jobs much more dangerous. Shotguns and rifles you can see coming, and are used for other purposes than shooting people or people shaped targets. Indeed, a shotgun is the best home protection you can own because it requires little aim and seeing one or hearing the click of the slide will elicit a flight reaction from just about anyone.

Wait, are you posting that as flamebait, or are you serious?
Psychology is absolutely a science. It applies the scientific method as rigorously (if not more so) than any other branch of science. It still has a long way to go, but it's also one of the youngest sciences.

Experimental psychology's "classification scheme" is of course based on measurable objective facts. Like other sciences, psychology uses operational definitions. A psychologist might define intelligence as a score on an IQ test, just as physicist uses a current balance to define amperes. When it comes to mental health, a symptomatic medical model is used.

Majority rules is exactly the way science works. Whatever the preponderance of evidence supports, is the position that "science" (as if this was a separate entity) takes. Mainstream science is just the aggregate of scientists' opinions. As Thomas Kuhn has brilliantly illustrated, scientific thought is internally divided and continually evolving. Science builds on what comes before, but every so often someone comes and blows up the foundation. (Copernicus, Einstein, Pasteur, etc).
It's a bit ironic that you level your criticism at "psychology formal" and not counseling or psychiatry, because these are the least scientific. These folks are most interested in helping people feel better and cope, science be damned.
Anyone who calls experimental psychology unscientific is either unfamiliar with science or good psychology, or is a troll.