By using that logic though, you must hate the idea of TN elements being on comets in large amounts. You can probably make a better argument for stars than ice balls.
You're comparing apples to oranges, not to mention putting words in my mouth.
I'll admit, given the handwaviness of the whole TN concept, there's no real reason to say TN elements wouldn't/couldn't be found in a star. But even if that were the case, how would you get at them in sufficient quantities to make the effort worthwhile?
At least minerals on a comet(or asteroid, or planet, or for that matter even the sorium in a gas giant) are fairly easily accessible by comparison. Whereas elements in the core of a main-sequence star, not so much. Add that onto the fact that, since metallic bonds are impossible to maintain inside a star, you'd be pulling elements out of a star atom by atom. Aurora measures mining output in tons per year; the sample mining ship on the wiki has an annual output of 375 tons(IIRC). That's a loooooooooot of atoms. Slow, inefficient, and dangerous is no way to mine for resources.
Why not isn't the reason. It means I am asking you for providing the counter-argument.
Considering that the arguments of those in favor of the idea basically seem to boil down to 'I think it sounds neat', I don't see why 'I don't think it sounds neat/I think it sounds silly/implausible' isn't a valid counter-argument. But, if that's not enough, see my last post and the first part of this one.