It's just the same old, trite non-debate. "It's fiction." "But fiction matters for real-life." "But it's still fiction." "But it still matters." Yeah, well, both's true, so what? Nobody ever complains about the inappropriate use of extra-judical force to deliver justice in Die Hard. People are supposed to not be too stupid to mix fantasy and reality. The only alternative is censorship, and there lies a path to true evil.
Either way, good first chapter. Very Japanese with how the people acted; love that. Mangas need more bowing and elaborate apologies for that proper Japanese feel :D