Board Thread:Naruto Discussions/@comment-36006024-20180926134241/@comment-36006024-20180926152947

Yes but the Kurama Chakra that naruto uses for those forms are just that - Kurama's chakra.

if you take away Kurama from naruto and give him sage mode which he earned through training, hes not as strong as hashirama. The premise that im setting is that these power-ups are all stemmed from external sources and not from ones own prowess.

Example - Madara's rinnegan: the rinnegan is only able to be awakened by getting hagoromos chakra, therefore its an external power and not one you can awaken through teachings or training. - Sasuke's Rinnegan-Sharingan Hybrid: attained from hagoromo himself/hashi cells( as this is still disputed so i will include both points) again, another external source as he wouldnt be able to awaken it otherwise. -Naruto's KCM, BSM, SPSM: all are attained through kurama, and hagoromo respectively. Naruto's Sage Mode is the only viable power up. - Ten tails is an external power

Hashirama was never a jinchuriki. he never combined his chakra with an Indra reincarnate. He never received a boost from Hagoromo. His power has been built from the ground up through sheer training and experience in battle. Sage mode as well was something that he was taught and he perfected.