Selling more wetsuits to trans people is NOT the point of Rip Curl's marketing move - if they do, that's fine but the point is to present a trans person as someone who follows their muse, commits to being the best person they can be, lives their life as THEY want to live it, is committed to being an individual true to themselves, etc; all the popular culture platitudes that people in western cultures say they live by.
Eastern cultures have different ideas, where the individual is far more subordinate to the collective will, but eastern cultures like China, Japan and Korea area not Rip Curl's main market.
So wether you agree with trans people becoming trans, competing in athletic competitions as equals with biological women or have objections that are based on religion, science, aesthetics, or a combination of all three, that's not the point.
The trans person is supposed to serve as an inspiration, not a literal role model.