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So? Customers aren't going to care if the price is lower and the quality the same.

That's right. It's between the customer, and the bootlegger. If the bootlegger fraudulently sells a brand name which isn't legit, then the customer has recourse against the vendor, but that's it.
If you're not involved in that transaction, it has nothing to do with you.

Well he would be causing financial harm to that business that is being impersonated. Because people would associate his scam attempt with that business, potentiall scaring many customers away from the legitimate business too.

True. Those customers could then pursue him for fraud, until he changes or quits. I imagine those 'customers' would likely include the entity he's impersonating.

Not just the customer, but the company who is being impersonated as well. The impersonated company loses more, in terms of reputation, than the customers.

Although in the case of a phishing attempt, it could turn out really really bad.

Are you sure though? If I go to Thailand and buy a Rollex, either I believe it's a Rolex, and will be disappointed when I take it in to Rolex for a refund when it breaks, or I don't believe it's a real Rolex, in which case their brand is not diminished in my reckoning.
I have grave misgivings about having transactions controlled by parties not involved in those transactions. It causes far more problems than it solves.

But it is, there is already a problem with China stealing many western innovations and making cheap copies of that, that is the main reason why the USA is in conflict with China in the first place.

So a Chinese person will never know what a "real Rolex" is simple because copycats diminish the image of Rolex in China.

So if he were to get in contact with a real shop that sells real Rolex, he would not buy that because he would think that the brand is crappy, and not recognize that what he bought earlier was a copycat.

Customers think like that. So you might suffer a loss of like 50$ by buying a crappy copycat, but Rolex the firm might suffer billions of $ of losses because of this.

So trademark respect in this case is crucial.