I'm afraid you got too many wrongs in this single post.
1. A strong punch "is not needed at all" to knock out a guy? So, what's needed, a tickle? LOL!
2. Boxing isn't a slap contest. Knockout punches always come unexpected. Otherwise, the boxer would have dodged it, braced himself, or put up a solid cover.
3. You talked of strong punches and, of all heavyweights, you used Deontay Wilder as an example of one who doesn't have that? Come on! Winning 42 of his 43 wins by way of knockout and Wilder doesn't have a strong punch? So, what has he got, magical powers?
4. Weight is the basis of a boxer's power? Wilder is knocking his opponents out not because of his weight but because of his punching power.
5. Wilder not a real heavyweight? Come on! In his entire professional boxing career, he's only fighting in that weight class. Even when he was an amateur boxer, he was already fighting in that division.
6. And so on. LOL!
Ok then, lets correct all my wrongs.
1. Nope, not a tickle. A punch that you dont expect or dont knocks you out. That is why smaller and lighter boxers or people knockout huge guys. Also is it not enough to just punch in the head. Punch to forehead dont knockout people, but a punch to jaw would.
Refer to my #2 response above. In every single boxing fight in all of the sport's history, a boxer is always hit by a surprising punch. Do all boxing matches, then, end up in a knockout? No. It's primarily because not all boxers are gifted with punching power. Consider those boxers who have so much hand speed like Rigondeaux or Lomachenko; are they knocking out all their opponents like, say, Wilder does? No.
And what do you mean a punch in the head doesn't knock out a boxer? Review all the knockout fights that you've watched and come back here.
2. Punches through block hurt a lot also, can knockout if you were knocked down before.
And only if hit in the jaw? LOL!
3. Among 42 opponents that were knocked out, how many were really good boxer and not punching bags? Lets take a look on
https://boxrec.com/en/proboxer/468841. 1/3 or 1/4 among those 42 had either negative record, or few prof boxing fights. Why I think punching power isnt that important, but unexcited and unseen punch knocks people out - have you heard about Edwin Valero? 27 wins, 27 knockouts. Perfect knockout rate. All of them were done in featherweight division. That is 57-59kg. Do you think that straw like guy have real power to switch lights out? I think he did it mainly because of skill and tactics. These flies and straws did not hit 999 on punching bag machines as heavyweights do, but can knockout those heavyweights. Can this be possible then?
I don't know how much of boxing you know, but if you say that "punching power isn't that important," you must know a little.
Yes, I've watched Edwin Valero's fights. And you're wrong when you said that Valero isn't gifted with a strong punching power. You're terribly wrong. And what's the point that he's just 57-59 kilograms? Was the late Edwin fighting against 90-kilogram fighters? Valero's power was strong enough against boxers in his weight class. If he was fighting against Fury or Joshua, common sense would tell you that his punching power, no matter how strong it is, wouldn't knock them out.
Tell me you're joking when you said that the likes of Valero can knockout heavyweight opponents. You're not making any sense. "Skill and tactics" my ass.
4. Sorry did not get that...
Read it again.
5. Yeap, Wilder inst a real heavyweight. He is a fattened cruiserweight
Usyk was a cruiserweight and gained to fit in heavyweights, and he is heavier than Wilder. Take away gym from Wilder, and he would be a 90+/- guy. He isnt a natural heavyweight like most of his opponents. Why he isnt a heavyweight ? He has started his career as an Olympic boxer. Olympic heavyweight boxer is different from professional heavyweight boxer.
Olympic heavyweight boxing division is 81-91kg. That is what real Wilder is. He inst natural giant like 110+kg top of professional heavyweight boxer.
Take any boxer away from the gym and they stop being a boxer. LOL!
There's your answer; Wilder was already heavyweight even during his amateur years. The heavyweight division isn't about fighters who are 110+ kg. 91 kg. is already heavyweight.