I'm colourblind myself. I mind when eg UI elements or real world distinctions are _only_ communicated by hue (instead of also using texture, brightness, saturation, shape, text, etc); but I don't think anyone can mind less disabled people making full use of the facilities they have.
Although mostly tongue in cheek, I do think the lack of awareness by some UI designers is a real issue. I've also found IDE syntax colouring schemes that are just too hard.
I've also found posters and signs where important information is in colours/shades that I can't discriminate between. Sometimes I wonder if there should be a law that prevents safety information being green on brown, or brown on green, or the wrong shades of red/green/brown together.
And no, I don't do domestic wiring, nor can I read many resistors.
I am wary of adding extra laws. Especially ones that are hard to enforce. Luckily, I found that people seem to be paying more attention to accessibility than they did in the past.
Eg Game Maker's Toolkit has a video series about 'designing for disability', see eg their 'Colourblindness & Low Vision' entry at https://www.youtube.com/watch?v=xrqdU4cZaLw
One of their points is that lots of adjustments made to assist people with disabilities can also help normal people grasp information quicker or in unusual circumstances.
