Consider a sex-linked inherited disease like hemophilia. Males are never hidden carriers of this type of inherited disease. Why?

Males are never hidden carriers of sex-linked disorders because sex-linked disorders are carried on the X chromosome. Males have two sex chromosomes, one X chromosome and one Y chromosome. Since males only contain one X chromosome, if that chromosome has a sex-linked disorder on it, then the male will have it rather than being a carrier for it as it is the only allele present in male.