You have my full support. A lot of people are affected by this issue, even people who may not be completely aware they have a degree of colour blindness. It's a minor coding change to ensure that the major color blind groups are covered & there should be also the ability to change an accessibility setting to customise colours for those who are colour blind but not in the major groups (red-green & blue-yellow).

There's also those who cannot see colours at all, here there's a greater difficulty but it could be dealt with by, for example, instead of having a red circle (good) & blue circle (bad) mechanic it could be dashed red circle (good) & solid blue circle (bad). It's not a huge upheaval to make a game accessible in this way, it just takes forethought & motivation.