i actually like the posting above, because it makes you think about structural influences.
Lets get into it for a while.
So UKIP wants to - essentially - leave at all cost. Says ireland issue is overblown. "Just do it." Still gives them political capital, because they are not in power (can curse out the existing admin, if things go wrong).
Labour is useless in regards to this question as of now - their actions currently are done to gain domestic policy capital, with the folks agree, that the vote was idiotic (harms the people who voted for it (lower income) most - in the upcoming years - is a very likely outcome). But to demand a second vote so soon - isnt going to fly from a democratic perspective.
Admin is trying to do the following. Not to provoke a crisis with ireland (just think of it, as one of the countries, that looses the most, when leaving the EU), not lose access to EU markets (thats a thing where both the UK and the EU win, if thats the outcome, but the EU cant do it at "here have it for free" cost, and the costs would always have to be "you have to adher to EU rules, or get a worse outcome on a trade deal", otherwise the thing (EU) blows up) -- and strangely enough, to play for time.
Now the conventional wisdom is, that they play for time, to get the current agreement through parliament for the third time - but that seems idiotic, and not very likely. (Speaker of the house spoke out against it, but that means nothing if push comes to shove.)
Imho - more likely scenario is, that UK is playing for time, to get their preliminary deals in place with important partners all over the world. For that the current back stop deal is "hindering". So publicly delaying serves two purposes. First, buying time. Second, to get the EU moving time after time, after time on an issue that negatively impacts their trade negotiations (preliminary ones, arent called that right now), which buys them "face".
Now the EU essentially has said, stop doing that - we are not believing in your good will anymore, and calling your bluff.
The thing is, that economically, access to the EU markets is still very important for both partners - and what you are seeing right now, is positioning to get a better outcome on each side. In the end, this also goes for ireland (will get subsidized in a harder exit scenario).
I dont believe for a moment, that this is all people running around having no idea what to do.
Again, thats just UKIP telling you this, so you vote for them.
Brexit - likely - will still mean a very substantial trade deal between the EU and britain. If the EU does that without putting the UK down in the public eye, they loose heavily. So everything that makes the UK seem like total wankers, is good for "face" on the EU side. If a deal is brokered, a "you have to look like total wankers for a bit" clause is likely to be part of it.
If everything turns out no deal, things become hostile, and this logic goes out of the window.