You will have a point when you will prove for real that Lightning Network and Mixers are mainly used for malicious activity. Until then, your words are pure thoughts and speculation.
The best data that we do have (from Chainalysis of all places) shows that only 8% of coins passing through mixers were linked to illegal activities,
again for probably the 20th time
its not about the activity before he mixer being good or criminal
its about the use of a mixer puts you on a watchlist no matter the activity before or after it.
people that want to remain private dont want to be on a watch list on some SAR that goes to a government agency
so the smart thing is to learn what do the agencies list as things they consider red flags that generate SAR reports to them..