all the leavers know this and that's why they don't want any other votes.
Well I beg to differ, all the leavers don’t know this, in fact I am hard pushed to find anyone I know that has changed their minds on how they voted, there may be some, but not the masses that you are implying.
As to crashing out on WTO terms I would say that is probably the most likely result, mainly because the EU will not want us to be seen to gain from our exit. WTO rules are no different than the terms we trade with anywhere else in the world where we do not have trade deals in place and the current 10% tariff is payable on both sides so it works both ways. Even under those terms I am confident that many European companies will want to do a deal once they see their sales to the UK adversely affected, they sell far more to us than we sell to them. Of course WTO terms only apply if you cannot reach some other compromise, it is just a fall back tariff level and is used until everyone sorts something better out between themselves which usually happens anyway. As to going back into the EU after saying we are leaving, I would liken that to an unfaithful partner in a marriage returning home after a one night stand, the other partner may take them back, but things will never be the same again and how often will their infidelity keep getting thrown back in their face? We would be in an intolerable position if we had to rejoin again under any terms, we could be ignored at every turn and no doubt told “well you can always leave” every time we challenged the EU in any way. Leaving the EU does not make us bad Europeans or need to damage trade, we as a country are quite prepared to continue with free trade and involvement in many aspects of European cooperation, we just want to be free of control from Brussels and to leave the EU club and to determine who crosses our borders to work or live here, not that difficult to understand or to accept. So if the EU is insistent on there being no deal unless you agree to free movement, then it is they who are being intransigent as they are fully aware of the reasons behind this and it is they who can change things and not us.