"naruto wont get a doujutsu because hes the Younger son representing the body of the sage"
Then goes on to say that Sasuke will get sage mode. :|
Ladies and gentlemen, Biggest biased user right here.
1. One needs sage mode to do damage on madara.
2. Sasuke got hashirama sage chakra and still he didn't turn into a frog (implying that he can manange sage mode)
3. Sasuke already used curse mark susano and it was proven that sage mode and curse mark have similar mechanics.
4. Getting sage mode and using sage mode to its full extent are 2 different things. (basically his attacks may have sage chakra involved but that sage chakra wont be his true source of power)
5. Count in the possibility of sharingan's power being improved if used with sage mode.
He is not being biased at all. Sasuke getting SM makes sense.
Naruto getting doujutsu doesn't.