@ Soo Yeak.
It's highly unfortunate that your red/green c.b. unfortunately in aviation colour is quite a big thing. For cabin crew for example the MCL indicator lights are all based on colours e.g. Red for cockpit
For Flight Deck a lot of the displays are colour oriented for ease.
Don't give up on what you want to do, as said before "if there is a will there is a way. Maybe you wouldn't be able to fly commercially but perhaps flight instruction for example or so on and so forth. I'd recommend contacting an AME for better clarification.
All the best
@ Jewel - saturation of nationalities would be my guess.