I wouldn't call it underestimating when I've seen first hand just how they are. They're fools, reckless and too willing to throw their lives away for a outdated ideal. You give them too much credit to think they're much more than that, or that they wouldn't betray her in order to satiate their own selfish desires.

[Listen, at least he technically wants what is for the greater good of their race. His approach may be a bit tactless, but his interests are technically rooted in the right place.]

Maybe it would do you some good to look at the full picture instead of giving them the benefit of the doubt. Do you want her to get hurt or -- [He scoffs. This would be no easy feat, but knowing those Bakufu dogs?] killed, because she was allowed to be kept on their leash?