First of all i hate how alot of people say sharingan is OP but so are alot of other thing eg (Jinchuriki's, rinnegan user, FTG,) Some uchicha didn't even reach the 3rd tomoi or worst didn't have the sharingan in general. Even with the 3 tomoi uchicha were beatable and it also took skill to attain 3 tomoi in the first place.
Also its not like all Uchicha have MS/EMS only a hand full like.
Itachi,Sasuke,Madara,Izuna but these were all attained through battle experince and hard work for example.
(I won't include shisui because I dont have enough info on him for me to decide). Any way lets get started
*Madara/Izuna
Countless battles through the 2nd shinobi war which was said to be more worser than the 3rd. Enough said
*Sasuke
2 year time skip of presumably training with a sannin, he would be doing anything else because he really f*kn hated itachi at the time. Itachi giving sasuke his powers at his death is BS he would eventually gained his MS after tobi told him the truth. Which the only way to attain MS is to kill your best friend or/which is literally to feel guilt in general.
*Itachi
Anbu squad leader at 13, through anbu he is bound to have a s*itload of A to S rank missions its ANBU ffs who are under direct order from danzo. A man who stops at nothing no matter how bad the task to keep his position and power. So the ANBU deal with the worst missions, ones you dont even speak of . So itachi was bound to have alot of experience through being an ANBU
So out of a clan of 100's maybe even 1000's only a hand full have earned their powers. Which is exactly like becoming bijuu host. It takes hard work to gain power. Their powers wern't just given to them. Its like saying someones who's rich and wealthly but works hard labour is lazy and dosen't deserve it
So what do you think OP
OR is it just the result of hard work.