You're still missing the point.
Native rasterization, plus blurry TAA, plus a CAS sharpening filter.
Lower resolution rasterization, plus an AI-trained upscaling, AA, and sharpening filter.
Which looks better? Hint: It's not universally the first option. There are games where DLSS Quality upscaling looks better than native + TAA. Probably because there's not enough extra stuff to work around the TAA.
Now if you were to compare native + DLAA against upscaled + DLSS, yes, the former universally looks better. And it runs much slower. And if you're playing at 1440p or 4K, in a game running at 45 fps native versus 70 fps with upscaling? Again, it's not a clear win, because in motion sometimes DLSS will look just as good, and you're not really going to notice the fine details, but you WILL notice the bump in fps.