It is both amazing and saddening to me how you can have such an arrogant view of a whole field with just taking a 101 course.
There is so much simple tests that they draw extreme conclusions from in the very first lectures you hear, and when they teach those things as true when its highly debatable its hard to not throw the entire field in the trash.
Of course there is probably some good psychology work done, but you shouldn't have so many shoddy examples in the first course then since that gives people a bad taste for the entire field.
One doesn't need to continue learning a topic to know it's bs when it's bs right from the start.
Sorry, most psychological research is sketchy at best, if not blatantly fraudulent