1. It needs to include Tory voters AND Labour voters.
2. "Stop the Tories" is not the same as "Stop Brexit".
3. Many Labour supporters want to focus tactics on STT.
4. Everyone else wants to focus tactics on SB.
This distinction may seem like splitting hairs, but it's critical to understanding the problem.
- For most supporters of other parties, the very worst future is Brexit. But since we're being brutally honest, a majority Corbyn government doesn't look too hot to them either.
Everyone else's solution: a coalition of likeminded parties, all of whom want to stop Brexit to some degree.
Labour supporters, if they want to Stop the Tories, should accept everyone else's solution. Because it would definitely STT. If that's more important to them than Leave/Remain, then go for it.
1. It could attract *some* Labour Leavers too because it will STT
2. It doesn't put off voters from other parties because Corbyn won't get his majority
3. It makes tactical voting "easier"
If the decision is to maximise overall MP numbers for a coalition, then tactical voting should aim to put *one of the future coalition partner's MPs into power*. In some seats that will be Labour, others LD, others SNP or whatever.
Or we can go with what we have now, which is a mess.