You need IQ not economics to make wise decisions.
Compulsory voting is an infringement of a person's right not to approve of any option. It's bullying folk to do something they have every right to abstain from. 'Don't know' options merely imply individual lack of understanding/intelligence, they are not only not covering 'none of the above', nor 'don't care' but are also forcing folk to physically go do something they choose not to. It's unreasonable, and nations that practice it should be ashamed.
I think it quite clear that another referendum is merely dismissing the result of the first, and is therefore unacceptable. The fact that remainers in the government cheated by sending out remain propaganda, and yet still lost, doesn't nullify the result.
We already have a path which has no need nor justification to be changed. We have a leaving date. All concerned had 2 years to sort out trade agreements/future relationship for after the event, and yet they wasted the time trying to work out how much one could sting the UK for leavin, and how to try to keep us under EU control whilst having no say.
A daft arrangement detrimental to the UK has been suggested which, if MPs have any sanity, will be slung out (perhaps along with the PM who pushed for it). That just leaves us all with no deal left when the date arrives; and so we simply drop out of the EU with nothing agreed.
There's no justification for trying to change any of that agreed process, and possibly no right to do so either. No moral right for sure.