Arnim, I think you are missing the point. I don't see that anyone is attacking a businessman that wants to sell copies, reproductions, are facsimiles (note I didn't say "fakes") - as long as they are identified as such, not only for the original sale, but for all future and subsequent sales as well.
I hope you won't take this wrong - my intention is not to disparage. However, most of us aren't fortunate enough to have inherited fine - genuine - collections. Most of us (and probably you as well) have to purchase items with disposable income (of which I'm sure many of us have less these days) and we don't need more challenges (no matter how unintended) in our quest for desired items. That is the point. The purveyor of reproductions and art pieces needs to accept responsibility for even the unintended consequences of his actions. That is all we are asking. If there is the perception that a merchant flaunts that responsibility, then he should accept the criticism and take steps to remove any doubt. That is all we are asking. If not, then he should also expect to be shunned by the very people he might want to attract as customers - assuming he is intending to sell his art pieces to the collecting public in the first place.
You are correct; there is a market for replicas. Look at replica firearms for example; clearly, those are big business - but also easily identified as replicas. And I for one will never own a genuine Pour le Merite, but have contemplated seeking out a nice replica. I'm sure there are other serious collectors who have considered the same. But I also shy away from sellers who are not part of the greater "gentleman's collecting community" regardless of what they sell - replicas or genuine.
Unfortunately, there are unscrupulous profit-seekers out there - who can and will take advantage of the reputable businessman's effort to fill the replica demand. All we are asking is for the responsible businessman to take steps to ensure that doesn't happen. Responsible is the key word. Simply arguing that a merchant has the right to take advantage of fools and idiots doesn't sound very responsible in my opinion. But to each his own. And each of us have the right to shun such a merchant. Like I said, I don't think you'll change any minds around here on this point.