the issue that the pictures has caused enough of an issue to enough of the people to cause the gallery to consider that its very future as a business
In all similar instances, when "offensive" content has been put on display, it has attracted a crowd. The notion that ethical issues surrounding these images would somehow pose a threat to the museum in terms of visitor numbers is unrealistic. But, as said before, a museum is not a business. The major source of income for museums, especially in the US, is donations from private actors - often wealthy industrialists. What
is conceivable is that one or several of those have objected to the Mann show and have put things in motion to intervene. A museum would be receptive to such an argument because that actually would threaten the financial stability of the organization. But even so, the problem with that argument would be that the museum did not withdraw the photos on its own account. There was an external intervention involving the police, suggesting that the whole reasoning behind museums being a business and trying to please visitors is just a random diversion into fantasy land and not related to the actual background to these developments. I think the old saying applies here that if someone only has a hammer, they'll attempt to make a nail out of everything.
As to dogs and tails - some dogs turn out to have rather voluminous tails. It's sometimes a little hard to figure out whether the center of gravity really is with the dog, per se. I think we have plenty of evidence from recent developments especially in the US, but also elsewhere, that the dog may have severely underestimated the size of its tail in recent years.
And it's also irrelevant to this conversation
While I agree that the issue surrounding the ethics in relation to consent and Mann's own children is different from the actual intervention the Texan museum, I don't think it's therefore also irrelevant. In exploring the background to this intervention, it's sensible to also explore motives for people objecting against the work. I think we've established quite firmly that some of these motives are strongly ideological and for the most part appear to relate to worldviews that are not very prominent among frequent posters on this forum. But the issue surrounding consent appears to be a little more nuanced and difficult to associate with a certain socio-political corner. I find it logical that it's being discussed - and indeed, I see no reason to discredit such a discussion. I think it's in fact one of the more relevant aspects of the debate.