From: David Johnston

Ranma-refugee needs a rationalisation for his course of action

I agree, but he can't possibly know about the consequences of his action
yet. He never jumped before, he doesn't know what happens to the host when
he jumps into their bodies. For all he knows, he just 'killed' the Ranma
native to his new universe. That's my problem with the section, he's talking
about something he can't possibly have known about.

To the author: When are you going to tell us how did the Imperial universe
diverged from ours? It's been 12 chapters already and we still don't know
about that one. It's quite interesting given that most asian empires were
not very expansionist. Maybe because they had China as a neighbour? One
which didn't expand much either.