There is no reason to allow IndyRef2 in legal or political terms whatsoever. Firstly, international law asserts there is no democratic right to secession. In terms of democracy, its a right only in a colonial context and oppression from the parent state. Scotland does not meet the criteria for either.
Secondly, under international law Scotland and other regions is entitled to devolution only. And that is democracy.
There is no democratic right to secession.
Unionists value stability of the unitary sovereign state amongst other concerns. Given international law, why on earth should they agree to secessionist demands for IndyRef2?!
Attempting to counter that with "No reason to deny them the chance to put this to the test then is there?" is circular reasoning. And that is NOT a reason to grant IndyRef2.
Thirdly, opinion polls is a valid way of gauging support or lack of for secession. They're based on a representative sample of the overall population. It indicates both sluggish growth for secession and opposition against.
Fourthly, the SNP might have more MSPs than the three Unionist parties. But "A vote for the SNP is not a vote for another referendum" uttered by Nicola Sturgeon comes back to haunt her.....and the SNP. As such, its clearly not a total endorsement of the SNP secessionist demand.
More pertinently, the SNP are far away from having as many votes in the Westminster Parliament as the Unionist parties. This matters because it is the Westminster Parliament that CAN legislate to approve IndyRef2 and is, therefore, the Supreme Legislator in the UK.
Holyrood definitely is NOT. See the attached UK Supreme Court ruling once again.....
So, Westminster is the ONLY correct place to campaign for IndyRef2. In which case the SNP need to build a coalition within the Westminster Parliament. And it is democratic for the other Westminster parties to say no and maintain the UK is a unitary sovereign state.
That IS democracy too!