We had a referendum on Brexit; it was a leave result. If you don't respect the EU ref result, why should Parlaiment ever respect an Indyref2 result, should one take place?
We DO want Brexit across the whole of the UK. The SNP are chummying up to Labur because they reckon they can coax another referendum our of them, which is competely underhanded. Labour wants to keep us in the Single Market so that means; continuing to pay the membership fee, continuing to obey the Common Fisheries Policy, continuing to obey freedom of movement laws etc. In other words, overturning the EU referendum result. We voted as the UK to leave the EU and all parties promised to abide by the result. You don't want to leave the EU, the majority disagrees with you.
If the Tories are selfish greedy and incompetant, then the SNP are immoral, disrespectful of the electorate and the electoral process and authoritarian in their belief that they are right and the voting public are wrong.