更新1:
Saying that if they vote against Brexit would be 'going against the will of the people' is a gross oversimplification. Just over 48% of those who voted in the referendum voted to remain, with the majority of voters in one third of the UK voting to remain, and in many areas the vote was so close that half of the electorate will potentially be against them however they vote. What MPs should do is vote for what is best for the UK and then make sure their voters understand this before 2020.