Understandable. I think companies were one of the primary reasons some places in China such as large hotels finally offered a DCC opt-out. However, I would still check the box for local currency whenever possible only for the reason that DCC scammers can't use the statistic, "Look! Our customers prefer this!" However, with no financial stake in the game, I certainly wouldn't spend the effort fighting forced DCC or doing chargebacks.

I'm not sure I agree with your assessment that Europeans are ripped off when they come to the US through DCC. My sister-in-law did many purchases at all sorts of tourist places and department stores and only faced DCC twice. Both times the DCC offer displayed on the signature pad, and the cashier offered no input over the process. The first time I was fumbling to get my phone out to take a picture for about 15-20 seconds, so the screen remained the same. Furthermore, we didn't see DCC at Macy's, Bloomingdale's, or Nordstrom. I'm not saying that the US is completely free of DCC because we saw some examples, but both times DCC was easily avoidable by those in the know. It's usually not like some other places where they just had the receipt DCC receipt, even if you tell them. I think the one case where someone couldn't avoid it was with an Avis car rental.