Do people genuinely don't know that they are buying fakes and the product is far from the real one or people know very well it's not an original, but they buy i

Do people genuinely don't know that they are buying fakes and the product is far from the real one or people know very well it's not an original, but they buy it because of the price and despite not being original is still good? If it's only either of those cases, then I can't see how cheese and desist type of actions would help the original producers? I mean if suddenly you cannot find clones on the market, then a person who used to buy clones would fork out more money for the real thing or bought something else within their budget?