My heart wasn't in it either, until I spoke to the local green candidate. He's a lot more sound than the Greens nationally, so I'm very happy I've got someone I'm aligned with amongst the local parade of cunts.
I emailed his office to say I'm either spoiling my ballot, or voting green. Voting green depends on your personal positions on transgender issues, Gaza, immigration, and the NHS. And he emailed back like here you go, bullet point list of opinions, and they were very close to my own.