Was about to respond to that post myself - you beat me to it.
Unless the OP is into corruption, the EU, Trans Rights/Self ID and green washing on a massive scale, the SNP in most other parts of the UK would be as popular as a STD.
Further, we actually do have choice outside of Scotland, and would have more if peeps organised instead of just whinge i.e., what about the TUSC or CPGB as alternatives?
In Wales we have Plaid Cymru, which thankfully don't want anything to do with NATO but is still keen on Brussels and pushing LBGTQ+++++ issues. Obviously we have the Greens as well, so, my least, worse option next year is Plaid Cymru, but will vote CPGB or TUSC if someone is standing.