Materialists often state that supporters of Psi Phenomenon and and Afterlife among other things lacked critical thinking skills. That is an easy statement to make without actually backing it up. A lot of Psychical researchers for example didn't go into examining the paranormal to prove it's existence. Far from it they actually wanted to show that all these people who claim they are able to communicate with spirits for example were frauds and delusional. However, that is not how things went down, instead one by one they became convinced of the reality of an afterlife and psi phenomenon. They carefully controlled for all variables and exhausted all regular normal explanations for such purported phenomenon. Fraud is an easy charge to make because it's something you cannot 100 percent disprove. That is why Skeptics often make a charge such as this. You never hear supporters such as me and others for an afterlife etc"} make a statement that Materialist's don't use critical thinking. That is because we aren't as destructive as they are. That doesn't mean however that supporter's of an afterlife and other such things don't get defensive. They do, we all do. It's human nature, however when someone resorts to physiological attacks on one's frame of mind by saying oh there is something really mentally wrong with that person. Well, that is when it's going too far.
Side note: As you know I live in Canada and we are celebrating Canada's 150 birthday and I just want to say I am thankful for living in Canada. There is a lot to be thankful for and proud of. We are an amazing country.
I have recently subscribed to a new channel on Youtube. It's called "new thinking allowed", hosted by Jeffrey Mishlove. It is very informative and provides an amazing wealth of information that you may have never known about. It explores topics such as Parapsychology, Mind body problem as well as Psychical Research with an open mind.
You can check it out here. I highly recommend you do.