Woody is this you?
Any fans who want to be nice to Rashford and Sancho, don't really care about the club or are happy with us being a mediocre club. Look at how the top clubs like Barca, Arsenal, Chelsea freeze out players they don't want. That's how top clubs should operate.
This holier than thou attitude at United needs to stop. We aren't special. We're broke, have terrible owners, and need to be ruthless to rebuild a mid table squad.
Rashford was offered a contract to work hard and perform. Walking around the pitch and not performing is a breach of contract spirit. And on top of that to say I'm only going to Barca and I'm not lowering wage demands is Rashford going nuclear against any amicable solution.
Our response here should be as other posters have described, demote them to train with Youth team, offer terrible loan options to him, until he finds a club willing to pay for his transfer and wages.
Simple as that and watch the magic happen. These players have massive egos and until you starve them of what they crave most, they won't compromise.