Earlier quoted context omitted.
I’ve seen how much attention Lego puts into designing and making their bricks and sets, as well as their general outlook, so combined with their better quality, fake Lego bricks is not something I want polluting or diluting my/my kid’s Lego.
Why are you so sure that the other bricks are of lesser quality?
Those "other bricks" are quite useful when you want something that Lego won't produce. For example gimp figurine for your Pulp Fiction diorama.