None of the Republicans can vote for a democrat. It would be political suicide. So unless 4-5 moderate republicans plan on retiring this is not going to happen.
With your track record here and that of the person I replied to some independent research seemed appropriate.
https://www.abc.net.au/news/2023-10-15/nz-election-analysis-labour-loses-support-in-both-directions-/102976938
You'd have credibility if you were not using words like 'far 'left' ' authoritarian ' 'power freaks'.
I'd say this seems to be the normal swing where people want change after one party has been in office for some time.