how many races is too many?

also is there even a point in having them if they all look the same or just way too simular?
also half races are they even needed? (mostly just half humans lol)

i will say: 10 races is good number, if races are just humans but x dif. then no they're not fucking needed and are just tolkien slop. also half races would be fine if it wasnt just half human half x race all the time.