Only reason Boros was able to do this because of his species trait so he has his own physical strenght . But in dragon ball universe characters can upgrade their strenght by putting ki in it like if you want to destroy planet just put power level of 500 000 in punch and punch planet.Characters in end of dragon ball super could destroy universe with one punch that even saitama couldn't do hell he couldn't even destroy planet at his serious punch he can destroy mountan that over 10 animes characters can so saitama obviously is not in top strongest because even krillin can beat him or even yamcha.There we have Beerus who destroyed half planet with just finger.
UPGRADED LORD BOROS IN DRAGON BALL
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