BC would trade bargnani, as he would trade Bosh
if the right package came along. This "no player is untradeable" is a major bullshit. If Lakers could get duncan, nash and tmac for Kobe, would they say no? Of course not ... It's all about what you get in return.
In any case, I wouldn't put too much trust in whatever Bryan says in the media, I'm sure he will not reveal his real thoughts/intentions, he's too smart and calculated for this.