I admire your dedication but Martial has only scored more than 20 goals in one season and only over 10 in another 3, 0.28 goals per game overall... and his stats were similar at Monaco
As for injuries, last season he played 29 and scored 9, 0.31 GPG so actually better than his average, there have only been 2 seasons in his entire career where he has averaged better than 0.31 GPG so not sure where this notion that he has been ravaged by injuries comes from, it is just nonsense
You can make excuses but he is just not good enough
As for our fault he cannot be sold? I don't blame any player for squeezing every last penny, but whilst it is our fault he was given a lucrative contract he is not obliged to demand that his wages are kept at that level by a new club, he should recognise that he his performances do not warrant that level of wage... but if he wants to warm the bench and make bank I do not blame him, but he could get a move if he was willing to
Some counter-points here...
He's won POTY twice, scored nearly 100 goals for us and won MOTM against City how many times? Three? And he's scored lots of big goals including the winner in the semi-final.
That shouldn't be good enough, but in the context of the post-Fergie decade, it makes him one of our best performers. Who's done more than him? De Gea, Shaw, Rashford and Bruno definitely. Pogba, Herrera and Maguire debatable. That's it.
And he's definitely suffered injuries. We can't excuse players like Cavani (as many people have on here) and then condemn Martial, just because people have this perception that he's faking.
Overall, he's been a disappoint and it's best for everyone that he goes. But the vitriol that he gets on here is ridiculous - someone was saying the other day that Anderson achieved more than him at United! It's madness.
And finally, you're right about the blame for his staying. I hate it when people say 'ah, it's not his fault.' Most of us turn up for work and do our best, so we shouldn't excuse people just sitting there and taking the money.