Um, no it wasn't. The helm affords the control over the Scourge, as well as the armor. Frostmourne is an even larger source of the Lich King's power that Bolvar does not possess. The helm is not the only thing that empowers the Lich King, it's merely a part of it. And no, the Helm of Domination is not "literally how the Lich King was created". Ner'zhul's soul was bound to the helm. It did not "create" anything.
So, what's that irony you speak of? Please, remind me.
Bolvar lacks 2/3s of what made Arthas superior. So it's to be expected he's 33% of the power of Arthas, assuming he had the same physical prowess.
But hey, you rock on there, not knowing what you're talking about and all. Makes for a great laugh.