Boys or Girls?

A boy has one X-chromosome and one Y-chromosome, while a girl has two X- chromosomes. Now, colour blindness being an X-linked inheritance disease attacks the X-chromosome. So, there is $50\%$ probability for a girl to be affected, because she can be carrier if only one X-chromosome is affected. But if a male is attacked, then there is almost $100\%$ probabilty for him to be affected, because his only X-chromosome gets affected.

For those who finished seeing the solution, please help in this discussion.

Question is not good.

Imagine a case where boy suffers from colour blindness. As color blindness is linked with X chromosome the X chromosome of boy is affected. Now imagine a girl who has family history of colour blindness she will have the sex chromosome as X X X indicates affected chromosome. Now suppose they have an offspring. The punnet square will be

boy. X* Y girl X* X

now the offspring' are with traits X X colour blind girl X*Y colour blind boy

so there is a chance of color blind girl also.

I am colorblind and I find this offensive