While Boruto has always been about introducing a new group of shinobi to a new cohort of fans, like any good sequel, some elements must be maintained if the creator – Masashi Kishimoto – wants to keep thematic integrity with the prior series, Naruto. In this case, Kawaki's unbending focus on protecting the Seventh Hokage from harm reflects a recurring Naruto-Verse character trait that never ends well for the individual or the community.
https://screenrant.com/boruto-kawaki-greatest-villain-naruto-one-trait/