Not really, these people are part of the 16m that voted to remain, who have never accepted they lost.
It was always going to be a No deal/ Leave, or a revoke A50/Remain option , all other so called options are the real 'unicorns'.
The EU was never going to give the UK a 'good deal', because politically it was not in their interests to do so. May knew that, hence her "No Deal is better than a bad deal" speech at Lancaster house; however she has screwed it up in a manner almost beyond belief and remain voters now realise they have to give up on the may be a soft Brexit, maybe a second referendum, Norway + etc. and are now just saying to May "you made a mess of it, so do the decent thing revoke A50 then step down!