Lots of things. The problem with pseudo-scientific takes, in general, is that they steal from science but don't actually contribute anything to it. You're essentially making the same argument as, "it snowed in winter so climate change isn't real."

Addiction is a well-defined term and every addiction has more than one root cause.

Research to date shows that pathological gamblers and drug addicts share many of the same genetic predispositions for impulsivity and reward seeking. Just as substance addicts require increasingly strong hits to get high, compulsive gamblers pursue ever riskier ventures. Likewise, both drug addicts and problem gamblers endure symptoms of withdrawal when separated from the chemical or thrill they desire. And a few studies suggest that some people are especially vulnerable to both drug addiction and compulsive gambling because their reward circuitry is inherently underactive—which may partially explain why they seek big thrills in the first place

https://www.scientificamerican.com/article/how-the-brain-gets-addicted-to-gambling/

Chose a layman site to help you get it more easily