Originally Posted by
Kraco
A building sized machine is as stupid as anything imaginable for everything but mining coal. Such a thing can't avoid anything and it's visible far beyond the horizon. It's just a giant sitting duck. There hasn't been a single moment in the human history when an armour wouldn't have been shortly after penetrated by a new weapon. That's why tank warfare in general isn't favoured in the West these days, even if the Russians still love it (because it's such a mighty phallic symbol for a macho culture). A multimillion tank will be destroyed by a weapon costing only tens of thousands at max. We even saw in this same episode that the weapons the objects carry can easily destroy other objects. Those weapons are much smaller than the object itself. This means you can install such a weapon on a much smaller platform and destroy a hulking enemy object before its operator had any idea what hit it. That's how warfare goes anywhere else but in the minds of Japanese authors.
And yeah, human shaped mecha are also ridiculous realistically speaking, but much less so than these things.