Nonnie I think this has highlighted how poor our parliamentary procedures are for dealing with situations like this. Many MPs cannot do anything to halt the juggernaut that is the PM and some of her cabinet. Likewise the opposition has their hands tied in situations like this.
Alongside this unwieldy and unwritten constitution there is such a division of opinion on this issue; stay in, crash out, stay in with this deal or that deal, in the customs union, have a second vote, rescind article 50....and so on.
There is no consensus.