I've mapped this for CON & LAB (other parties to follow)
tl;dr it varies a lot, but it's not a sine qua non for most intended activity
PDFS: CON- drive.google.com/open?id=1nHifM… LAB - drive.google.com/open?id=1dn5Fo…
However, it's worth noting that until Art.50 is done, there is likely to be very little bandwidth to actively pursue the other stuff, so there is (as we've seen) a environmental effect.
Labour have a much more distant stance
Overall, points to:
- disconnect of Brexit to other policy areas
- limits to what the EU does