jobo
Grandmaster
so no actual source you can quoteYeah, and I have you the beginnings of a long list of sources that when taken together explain that and other aspects of karate's origin and purpose.
Specifically though Funakoshi goes into detail in karatedo kyohan about when and why tl use karate and choki motobu concluded after years of testing his art and getting beat down by a wrestler that it was simply not designed for fighting in the ring combat sense.
I didn't say anything about ring fighting, just ordinary fighting