David,
Yes Keith, both the Tories and Labour have let the British people down very badly over this. Even the Lib Dems were mealy mouthed, the only person (in England anyway) willing to stand up and say that Freedom of Movement is a fantastic benefit for the British People was Caroline Lucas.

Quite. Now beside the referendum result, consider the 2017 election.
The two Brexit parties achieved 82% of the vote.
The "mealy mouthed" Lib Dems got 7% and Caroline Lucas' party just 1.6%.

Remain lost even more emphatically and decisively than in the referendum.