Not to say height is everything but don't pretend it doesn't matter.
A 5'3 guy is at clear disadvantage against a 6'3 one, given they are around the same weight and skill.
Yeah he should still train to fight but height does matter.
I am sure that you have never fought, or not enough.
Weight matters more.
Also, while the tall guy has the reach, he also has the leverage.
Him swinging will cost more energy, due to leverage.
Physics, man.
The short guy, with shorter arms, won't have that issue.
Also, let's assume both weigh the same and are equal in strength and stamina.
Their differences will be reach vs leverage.
Why I am saying this is because I have fought with such guys who were a full head shorter than me but we were pretty much equal in strength and stamina.
During sparring sessions the fights were almost 50/50.
I could only win when keeping them at a distance.
But once they grabbed me it was harder for me to get them off due to my extremities being longer.
That leverage worked against me and I understood this.
I always got more exhausted when we were wrestling it out on the ground.
Eventually I had to tap out.
This is just some of my experience.
I really think that most of you guys just want to be right, no matter what to prove whatever.
In the end, the problem are not foids but men who empower them and those brainwashed men themselves, who have a superiority complex because they are a couple of cm taller.