I disagree with the premise. Addiction is the key feature of modern life, and by saying only "bad" things are addictive we actually criminalize poverty. Can "love" be addictive? Absolutely, as explained in detail in Love & Addiction by Dr. Stanton Peele nearly 50 years ago. Love addiction (often called codependency) results in murder and suicide in the worst cases, but even in the best case it keeps people from self-actualizing. Anything that relieves the existential pain of existence is addictive.
See: https://www.amazon.com/dp/B00IVAQQOK and https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5378292/ for information on love addiction.
What you mean, Nir, is that a lot of people are ENTIRELY OK with their addictions, including TV, love addiction, and internet addiction. While these "less-harmful" addictions result in less hospitalizations, they still have risks, like depression: https://pubmed.ncbi.nlm.nih.gov/17709972
But if someone is OK with being a big TV fan (watching 20 hours of sports a week?), then there's nothing wrong with it. If TV is keeping them from meeting their goals and living their values, then they could benefit from being honest with themselves. Dr. Peele would suggest that the key to breaking any addiction is finding genuine value from real-life activities, instead of your addictions. Cheers!