Voting Green has the exact same effect as not voting. Yeah, it shouldn't be that way, but it's the way it is. There's wanting the ideal system where third party votes matter and there's pretending it already is an ideal system
You don't get to an ideal system by voting for people that won't have any power to change things. You make a difference by writing to and calling the people who do have power and ensure the people you call are at least sympathetic to what you want.
It is indeed not that complicated.
Sure it seems draconian, but how else are we going to get the kids to stop vaping and start smoking cigarettes like we did when we were in high school?
Won't someone please think of Phillip Morris' profit margins?