As a welder i know when a crack is welded the weakest area is in the heat affected zone beside the weld and it will crack again beside the weld.
Wheel repair places may roll a rim within reason but will not weld one. Sure you can get it welded by some but nobody wants to be held liable so wont do it.
The wheel needs to be heat treated to normalise it back to original factory state so it is not economic to do it. An insurer will void a claim if the wheel that was welded is even on the car , they must be notified if you do such repairs as it is outside of the contract i believe.
The damage shown is way outside of repairable. I wouldnt use it even as a spare if i welded it myself.......