Europe Minister David Lidington has written to his Government colleague Transport Secretary Patrick McLoughlin saying the line will concrete over farmland which currently serves as natural flood protection for his constituents' homes.
More top news
Two members of the public were injured along with two police officers who were in the unmarked vehicle.
Scotland Yard recorded 1,235 Islamophobic attacks in the last 12 months, compared with 811 in 2015.
Officers say the child, aged two, was targeted in the Lewisham Shopping Centre.