Fair play and I appreciate the concise resume of what what motivated you to engage.
From the minority perspective of someone who choose not to engage with the tory referendum I'd say that your position does, inevitably, include a number of assumptions as no-one could know what outcomes might result from the binary choice.
I suppose they include the assumptions that leaving the supra state would offer:
- greater opportunities to challenge neoliberalism and austerity
- more opportunity to shift debate for economic reform
- represent a "kicking" for the "established order"
- an expression of class solidarity
I can't really see that any of those Lexit assumptions/presumptions have been realised, but I can see that they represent a coherent basis for your support of Leave. But to say that they were not assumptions/presumptions is nonsense.