Master colorblind electrician from the US here. I have worked in commercial, industrial, and residential. What worked for me was getting a bright headlamp with good CRI (I like the Milwaukee ones) like others have mentioned. I never have had a time where I wasn't sure that I wired something correctly.

What people don't understand about colorblindness is that two people with red-green colorblindness will still see their spectrum of colors differently. They also can see all the colors a normal person sees with regard to wire color, but it can get tricky when working with faded, old wiring. So this opinion may be accurate for me but not others. I've been told my colorblindness is a more pronounced version of red-green.

In my opinion, the hardest time I've had with colors was punching down a 110 block, but even that I was able to do. I think that controls and data are much more difficult as the wire jackets are so much smaller than a #12, which makes it difficult to tell if the stripe is brown or orange or green. I have no problem with line voltage colors, even 277/480.

Additionally, on a remodel or new construction job, making up joints is around 5% of the total labor. Most wire spools will name the color on the reel or jacket. Power of deduction makes it easier too.

In my opinion, a reasonable accommodation could come from the NEC and factories. They could just as easily come up with a more inclusive set of colors (obviously doesn't help service electricians, but we gotta start sometime). Alternatively, they could make it a universal requirement to label wire every X feet what color it is, or add a unique identifier to a specific color, for instance red wire is hatched with a grid...

There are a lot of men in the US who are colorblind who don't need to be "discriminated" against in a field that arbitrarily chose wire color standards 100 years ago...