This is a realy good thread in terms of dealing with 'borrowed' power but it doesn't really deal with the issue of power-ups. People should just stop calling it borrowed power. The way I see it, it's unfair power-ups...
If I may use FMA as a metric or more specifically the principle of equivalent exchange:
Yes, every one is given chakra but they have to train to use justus, the shinju tree didn't give temh any jutsu, that's something they trained to earn and thus is not a power-up.
That's fundementally different to being "the chosen ones" and gaining power... that's what the core issue is...
For the Uchiha's the principle still holds... for them, losing someone close to them is as bad and traumatic as training like Rock Lee... and so they obtain an ability... It's not a FREE power-up, they have to sacrifice a lot to gain it...
I agree but again, that's not the core issue... The sword of Totstuka is not your egual sword although I do believe that he put in work to obtain it and thus deserves it...
I agree entirely... although this is still not the core issue. Am I allowed to phrase it as two people giving a supermarket 5$ and the first get a coke that's worth 5$ and the second gets a 21" LCD Plasma Screen Television...
Again... everyone gets Chakra but it's up to them to train and get Justu... so that argument is accurate but doesn't address the core issue... everyone else trains to obtain jutsu or works to obtain weapons or sacrfices something in the Uchiha case but some people are just "the chosen ones" and get power... that's the issue
In order to obtain something, one must give up something of equal value... that's the core issue of "borrowed power"