Yeah agreed selling out is a bit harsh, I'd replace it with conforming to enemy demands
Yeah, but usopp would rather not see his crew be hurt so if it means taking the easy way out and avoiding harm by telling a white lie just to please the enemy then of course he'd tell nami to do it.
But usopp wouldn't even dare think of doing something like that had he been pressed.
I think Usopp and Nami are going to get an even worse beating & maybe they'll take turns being "tortured".
Just don't let Tama be their ticket out of this mess.... of anything make this Usopp and Namis responsibility to protect her. All this pressure will surely make them bloom into more capable fighters.