Yet again, there's the myth that English players are overhyped being exposed; people seem intent on wanting to do down Rashford's achievements in a proper league, with the pressure of playing for one of the top 3 clubs in the world during a tough transitional period, while getting giddy over some kid from a bum league where players at decent clubs stay fresh enough due to the lack of attritional competition to shine in Europe.
British players are overpriced? Being black and French comes with the biggest premium football has ever seen; Pogba circa £90m, Martial £50m, Mangala £42m. Notice that none of them have done anything to justify those fees once they've had to actually play in a proper competitive league.
If Rashford was wearing a Dortmund or Monaco kit on some YouTube highlights compilation the same people who belittle his achievements would be worshipping him.