It does not seem unreasonable given the above that we should have another vote as to whether we should leave the EU.

Had the outcome of the referendum have been implemented your request for a second vote might have merit(given a suitable time period elapsing)
However the last vote from June 2016 has yet to be accepted and acted on, so calls for a further vote are an affront to democracy.

The government intransigence has required last minute canvassing for the upcoming EU elections. This was an event that the UK should not have been a participant in, but will give a very clear indicative vote of where people stand on brexit.

Latest polling suggests the Brexit party is still gathering support.
This support is not just from brexiteers but a large contingent of people see the Brexit party as the only one that supports democratic principles. For these fine people principle is far more important than ideology and democracy must be supported.