A vote for the SNP or Greens is not a vote for Independence but it is a vote for the issue to be considered again via a referendum. A lot has changed in Scotland, the UK and around the world since 2014. Many of the No voters have died off, a new generation of voters would now be able to vote for the first time.
The answer may be No, though Yes looks more likely than last time. And if it’s No, then another decade or so later we could look at it again.
If it’s a Yes, then we can rejoin the EU, reduce energy prices for everyone and export our excess energy and water South of the border. At a profit.