To which ‘they’ does your ‘their’ refer? Saudi’s in general? The House of Saud? Saudi men? Saudi women? I suspect that all of these groups have different opinions from each other.
Another problem is that membership of a ‘culture’ or nation is rarely remotely similar to voluntary membership of a club. The point is not that it is wrong to alter an ad when you show it in another country but that the kinds of alterations that have to be made in this case are symptoms of oppression. IKEA do the same in the catalogue that they deliver to Saudi Arabia, all the women are removed.
Saying that ‘so and so has a right to their own cultural appropriations’ in this cae sounds perilously close to saying that you should neither intervene nor speak up if you see a man beat his wife or children on the grounds that this is allowed in their culture. Or to give a less physical example a man denying his wife the ability to vote (this is suspected to happen in the UK).
