No it isn't.
On the one hand you claimed that no-one would want a second referendum purely based on opinion polls. Yet this is now your defining argument for justification.
You make the statement - 54% is a larger margin than 51.8%
Well yes but this is in an opinion poll - which are now using as validation. Consider this - of the 165 polls conducted during the last campaign only 16 ever had leave ahead and none by the eventual margin of victory. There were, however, polls that did have the margin of support for remain in the prior campaign. So the attempt to use this as justification for a further referendum is absurd. The polls in the last campaign failed to actually predict the final outcome
You actually skirt the issues as well. You never actually have defined if there were a second referendum what the question would be. Also would you agree if there was a second referendum and remain was successful consider this. Before article 50 was revoked an opinion poll was shown that revealed leave had an advantage would you then agree that a third referendum was required. I assume the answer would be yes - if not I can only conclude you are putting personal preference above democratic process.
Your posting on this subject I would have to say reminds me of a Chinese meal. Its very full initially but after a short space of time on investigation you become very empty. Your arguments are vacuous.
I know nothing about you but I strongly suspect you are very young (under 25) and somewhat lacking in experience and independent thought. You are led by the media you follow.
How very condescending.
You know full well I’m not using opinion polls as a justification for a second referendum. I consider it a very likely outcome given the political climate at hand. That is, a lack of support for May’s deal in parliament, the EU saying they won’t renegotiate and the alternative being a no-deal Brexit. There is no widespread support for that at all and you know it. Hence the need for the electorate to be called once more. It’s intellectually dishonest for you to use my use of opinion polls as justification for another referendum. The use of opinion polls is to do away with this idea that the calls for a second referendum is somehow undemocratic as the public seem increasingly in favour of it.
A pertinent issue for the Leave campaign was parliamentary sovereignty. Parliament is about to reject May’s deal, that is the likely spark for calls for a second referendum. How could the government put that deal to the public if Parliament has rejected it? Therefore, the likelihood is that a referendum would be between remaining in the EU and a no deal. The exact questioning for a second referendum would be decided by the Electoral Commission. Referendums usually have two answers so a third option is very, very unlikely and undesirable as it would probably split the Brexit vote more than the Remain vote.
Again, my previous posts have said that the issue of EU membership will not be over regardless of outcome, Leave or Remain. In a hypothetical scenario whereby we don’t leave the EU, and down the line there was support for another referendum, then I imagine there will be yet another referendum. Likewise, if we go ahead and leave and Brexit goes badly, there will be a demand for another referendum to rejoin. This issue is very divisive and doesn’t end in 2019 when our status is finalised one way or the other.