I used to agree with you. But over the last few years, in their own ways, Apple and Microsoft have dropped the ball on their native desktop UI toolkits. So, whereas the argument for native used to be "rewrite your client once per platform, and you get a better language, better performance, better usability, and a better development experience", now it's "rewrite your client once per platform and you may get a better language, depending on your taste, probably better performance, an aging closed-source toolchain, an outdated development paradigm, outdated APIs covered in legacy-barnacles, debugging-resistant performance pitfalls, and decent usability if you're ok with a generic one-size-fits-all look (and you're on your own if you're not.)" In other words, the argument for native, and native development itself, is not aging well.