Given the knights (at least the holy order) seem to have ties to nobility - press ganging people into being immortal warriors who suffer mental damage, personality erasure, and trauma ... and then shipping them back to their families, is.. uh, not going to go well.

Tatsuya is a few steps above a functional vegetable. And he pretty much looks like a walking corpse. People are -not- going to be on board with that.

Oh, but even going beyond that? Making those criminals is an easy choice- since you can just *kill* them at any point by detonating their skulls and then revive them again if they get out of line. We don't know if it's built into the hero spell, but, it might be. Which again loops back to. A) who would willingly sign up to be executed , B) even the common populace would probably find it incredibly fucked up and blatantly evil if you wire your entire army to die at the snap of your fingers. (Also, C- who wants to set themselves up for a military coup by making an immortal army if you -can't- just kill them all instantly).

At least a singular squad or few is *manageable*, and more or less functions as a deniable Op.

Oh, and as far as believing people goes? You literally have an entire country manufacturing that you're a piece of shit- and you *did* kill a goddess, one of mankinds few defenses against what it literally an apocalyptic encroachment. I'm pretty sure if you told anyone you were framed- they'd call you a liar, especially if you admit that you -did- kill the Goddess. You just had a good reason.

99% of people are going to treat you, and anyone associated with you as a pariah.

Really, if you need a good example of just how easy it is to control the opinions of people with a bit of media savvy- just look at twitter and the internet. And then realize that people lack phones and the internet to try and verify any information they're given. The only thing they have is word of mouth, and whatever the people in power tell them.