"... betrayed its leave voters in order to placate it’s remain supporters"
As a remainer, I see it as both main parties betraying their remain supporters to placate leavers. The difference is that the 'angry' faction seems to be the leavers.
There is no clear majority for either position. For decision with such far-reaching consequences, the referendum was a shabby piece of political theatre that showed around a third of eligible voters in favour of leaving.
This included those who believed the trade deals would be arriving as an avalanche, plus those wanting a Canada / Norway / Switzerland deal, and of course the no deal faction.
The reason Brexit voters are desperate to avoid a rethink is that any future decision would have to sift through all the options and consider what is best for the country. A blue passport really matters less to me than continuation of preferential trade with our biggest partners. Moreover, I would rather be a member of an economic and political body, with voting rights, than an outpost of China or the US, a recipient for the goods they need to dump and at the mercy of the big corporations that cannot tell Panama from Puerto Rico.