Your comment is highly misleading to the point that it is possibly the 'lie' you mean to make us wary of.
The evidence against your comment is in plain sight: a 'deal' is on the table right now, which some on 'both sides' just happen to not want for various reasons, but it could very well have passed.
The notion that there is only 'hard Brexit' or 'full EU' participation plainly not true, to even the most casual spectator, to imply such is an ugly, ideological misrepresentation of the facts, tantamount to the lie you're ostensibly loathing.
The 'deal' in place, which you suggest is 'the worst of both worlds' is plainly not. That the UK would be subject to EU rules during a period of negotiation is actually not very onerous. The UK was only one voice of a couple of dozen, to mostly lose that voice for 1-3 years is not a nation 'saddled with the EU' for any degree of time.
If the deal were to have been passed in Parliament - then some kind of trade negotiation would be worked out over the coming years, and then there'd be a fairly orderly Brexit: no UK in the EU, but some kind of 'decent trade deal' as some would want.
The EU has made things difficult in purpose, because they definitely don't want people thinking of leaving their club on purpose.
There is ample evidence of this, but I can point to one suitable clause in the current 'deal' in the table, which is that that the UK would not be able to exit the EU without permission of the EU itself, which is utterly unacceptable. It's a small but important clause, that should not be there.
This small clause has been enough to throw some Brexit Tories against the deal.
This small issue - in addition to the weirdly intractable problem of the 'Irish Border' and it's related backstop, is enough to make it 'hard'.
Without that clause, and without the Ireland border weirdness ... the deal in place would probably have passed.