What i dont understand is how the likes of kaminoan, arealight etc get away with making these "Lego" parts.
​It is a clear infringement on Lego and whatever licence's copyright they are copying, and is clearly done to make money not as a hobby.
And as stated in op does and will make an impact on actual Lego sales.
It really does worry me as a Lego collector and rare parts collector, that these companies will devalue and compromise the integrity of collections as "fake" parts make their way into the market.