You can deflect back to 284 but facts are most of the money came from 2808.
I don’t have to deflect to anything. Since 1991, Congress has ceded it’s Authority to control funding under certain bureaucracy. (10-284). 284 made the entire thing legal, and Constitutional. At that point, arguing anything else was blowing in the wind, and irrelevant. They cite Section 8005 in the case. 8005 is in your 2808 so it wasn’t ignored. They transferred money from 2808 section 8005 to be used under 10-284. SCOTUS questioned that, and saw it as legal.
I actually detest that Congress have ceded so, and wish the all 44 ‘Czars’(Depts of Bureaucracy) cancelled- because- as the Constitution writes: Appropriations come from the Legislature.
Now you know how I felt when things like OCare were upheld, or the Biden Mandates came along. Judges command down to us in a Post Constitutional World. At least now, for a short time, at least- SCOTUS is divided 3-3-3, with 3 Leftists (Sotomeyer, Kagan, and Breyer); 3 Originalists (Alito, Thomas, and hopefully, Barrrett, or Gorsuch); and 3 we have to wait and see how they vote. Roberts mostly votes Left, but sometimes surprises. Barrett hasn’t established a pattern, and Kavanaugh was hand-picked by Flipflopping Kennedy to be his flipflopping replacement…