He is way faster black whip and Detroit smash not even 100% full colwing

Deku has quirks that allow him to make most of DKT's abilities useless. with OFA, 2nd, 3rd, 4th, and 7ths quirks he can out speed DKT and maneuver, with 6ths quirk he can blind him, with 5ths quirk he can restrain him, and using his full strength he can punch DKT head off as much as needed.

well some DKT fans would say that tanjiro can regen so deku just destorys all of his cells it worked with cell and buu in DBZ so why can't it work for deku

Deku over Dkt why deku has way more destructive power than dkt and also deku is way faster than dkt. Dkt is Is only lightning speed to faster than lightning speed deku is 1% the speed of light which is way faster than dkt If deku is able to destroy Islands and dkt is only able to destroy buildings

It is tricky but if deku somehow uses one million percent just mabye but if regneration kicks in way too fast well bye deku or he might survive

so the reason why i chose this answer was because i believe that deku can beat this guy i mean look at him deku is gonna kill this dude no sweat.