Sounds like our world has lots of great things to look forward to if we ever eradicate the titans.

[which isn't to say that people don't already fight and kill people - just not quite on as large of a scale...although that might change depending on how this coups they're planning goes. All Levi can do is trust Erwin, even if it might get all of them killed by execution. That'd certainly make some people happy - formally executing all of the members of the Survey corps. Grand.]

Ironic that we're trying to save humanity when people seem bent on destroying themselves anyway.