I know it is certainly the case that some people use magick as a way of avoiding problems and covering up areas in their lives that are severely lacking but it's really not subject to simply just magick: religion itself is often used the same way, like alcohol is and drugs, so are relationships, sex, money, buying compulsions. These things in themselves aren't inherently bad (except buying compulsions) alone but it is the act which shapes the thought; If these things are being used to fill gaps of insecurities and are used as a crutch, it's clear that their place in that person's life will become toxic. It is easy to abuse something, especially with disingenuous intentions.
It's very easy to get into this god complex with the thing too, where everything will be solved by dancing around some candles and pointing a finger. That really makes the process of introspection which leads to illumination short circuit, because seldom will such a person feel that it's necessary to self-scrutinize their actions. Other arguments will also be made like, "I need to protect myself from X" or whatever to keep tapping into the confirmation bias they've bought into. If you are centered in the first place, you are an immovable object - these concerns are invalid. If you know what your mental map is in the first place, no outside force can lead you off the road.
You will find addictions and psychiatric problems common in various magick practitioners/occultists as well. (Generally, the treatable kind... not things like schizophrenia, etc...) They'll tell you because they're spooky and weird, but really they have problems that a doctor could diagnose. Magick is easier than admitting you have a problem you can't fix, isn't it? Unfortunately, I feel this is the worst of it - watching people in my close acquaintance repeatedly crash and burn. I have to just step back and tell myself, "It's their life, and they have to live it... even when they fall and bloody their knees."