Now don’t shoot me down, but one suggestion I’ve seen is that people sign up as Conservative members (£40 per year) so that when Rishi inevitably goes and there’s a Leadership contest we can vote for the candidate speaking the most sense on this issue so we can keep up the pressure on Labour.
I know a lot of people will abhor the idea of signing up as a Tory but the idea has some merit. Have to be speedy though, you have to be a member for 3 months to be eligible to vote in Leadership contests.