Really ? Get real.
"Except your London devs will be able to code. Unlike your Indian ones."
Not always, the Indians have their faults and idiosyncrasies but so do we and everyone makes mistakes. BA maintain it was a Brit that did it because outsourcing was not the cause. Technical superiority and excellence is required to beat the opposition. It's the same as sport, the best team usually wins.
If anyone thinks voting Brexit or rejecting outsourcing will save them from a lower cost base then who is deluded? If we insist on raising our living standards by buying cheaper from elsewhere then why should our jobs be any different? If more technicians read economics they would understand why this is a losing battle. As my instructor told us " Get good or get gone!"
PS I have worked with TCS and seen colleagues outsourced to them.