Template:Genetics
These claims usually come about as suggesting that the Y chromosome is somehow defective and is ultimately doomed[1]. These claim can occur because the Y chromosome is smaller than the X chromosome, contains fewer genes, and may once have been an X chromosome that lost a leg. These sorts of simplistic claims show a fundamental misunderstanding of genetics. There is no clear relationship between number of genes and complexity in multi-celullar organisms. Research shows, for example, that humans have less genes than grapes.[2]
Every difference between men and women comes, directly or indirectly, from the Y chromosome. To claim that the Y chromosome is a disadvantage for men is to reject everything it is to be male and to reject all of the achievements of men, now and in the past.