However, I'm really puzzled why a Remainer would genuinely prefer a No Deal to a WA, which at worst would bring the backstop,
No Remainer wants No Deal, but the backstop is absolutely not the worse the WA would bring. It’s hard bloody Brexit.
It essentially declares the UK leaving the CU-SM and aiming for FTA where nothing is guaranteed or certain.
The hard right are in control. Sure you can hope that a moderate Tory might replace May, but it might be Gove or Raab. They might win the next election. And if Corbyn gets in he still doesn’t want the EU or the single market anyway.
May has taken the ERG headbanger approach all along - we are leaving the CU, the SM, no fees, no ECJ, end of FoM, no CAP, no CFP, own trade deals, take back control of our laws, money, borders, fish, brexit means brexit, yadda yadda.
If we accept this very bad deal we will very likely get stuck in the backstop for many years because it while the FTA is negotiated. So 4-8 years.
The UK-wide backstop is a barebones customs union where UK has no say over anything (rules, trade deals, etc). It requires the EU to agree before UK can leave the backstop.
May tells everyone that the backstop will never be required because she deludedly thinks FTAs can deliver customs-free frictionless trade.
There isn't one FTA in existence which does that. It requires CU-SM.
Under FTA, the original NI backstop will still be required, where only NI stays in CU-SM.
Labour wants the future trade framework model to be based on the CU model. But Corbyn is stuck in non SM cake and eat it land. So fuck knows where that will end up.
The WA declares all the things that will all end after transition - which would be the default position, because A50 states that the
treaties will cease to apply. It's just that the WA makes it pretty clear that they won't re-apply either because UK is not seeking that type of deal.
The lack of commitment to any sensible future relations job should have your alarm bells ringing.
Supporting hard Brexit and leaving the EU in the faint hope that it might ar some future point become soft Brexit is potentially disastrous.