The concepts of species, subspecies and race are not set in stone, they change over time. Biology/taxonomy has gone through such revisions before.
If by "race" you mean "a loose group of people of similar phenotypes" then yes it's real. If you adopt a stricter definition then it's not.
The truth is, it doesn't matter if human races are real. They only claim it does so them can pwn the libs and come up with retarded inexistent "white nationalism".
People are never born equal and that's all that matters (except identical twins). You don't need to admit the concept of race in order to accept this.