I don't need to know that. All I need to know is that somebody will (and I am sure as eggs is eggs that somebody will).
You can just as truthfully put the second sentence as 'And if enough of you stand on the platform that operates the trap door, then all of us on the trap door will be killed. By falling through the trap door. That you collectively operated.'
Get off the goddamned trap door that could lead to your death! Don't blame the people who decided NOT to taunt death. The shifting of accountability is astonishing.
Look, if you walked up and found just one guy standing on a trap door over a lethal drop, and you saw someone else walk up and grab the lever that would operate that trap door, would you not yell, 'oh my gosh, don't pull that lever, you'll kill that guy!' Even though it could be framed as 'the guy already signified he was willing to risk forefiting his own life by getting on the trap door, and it's no business of mine what happens to him now.'
That's a very different scenario. You've fundamentally altered the situation, in a way similar to what Thermal has done on a few occasions. You've now introduced a lever, rather than a platform. You've now introduced something that requires intentional action to try to kill the other group, rather than a passive action of declining to take risk
If I walked up and found a guy standing on a trap door, I would most likely assume that they didn't know it was a trap door, and were unaware that there was a lethal drop beneath. I would assume that guy is a "baby". I would try to convince the guy to get off the potentially lethal trap door, and I would also try to convince other people not to walk onto the other platform until the "baby" was safely removed.
What you've tried to do is to introduce a functionally different situation. They're not isomorphic. You've introduced 1) a situation where the observer doesn't know if the person on the trap door is aware of the risk or not (a baby), and you've also introduced 2) an action that knowingly and intentionally tries to kill the other.
I am just not getting your insistence that pressing red is a passive action that does nothing.
In the abstract, it isn't. But of course I'd find if preferable if you would not actively throw in for the negative consequences coming about. (Though I can't blame you for wanting to pick what you see as the failsafe option.)
What I am really not understanding from your POV is how little you think all the blue deaths will affect your life if red does get over 50%.
Of course they'd affect my life, and that would really suck. But it would suck more to be dead.
Especially since that seems to be one of the main reasons the blue pressers choose to press blue; trying to avoid deaths by choosing what seems to them to be the only achievable way to avoid all deaths. They understand a 100% red outcome would also avoid all deaths, but honestly don't think it's achievable if we're running this choice past the average adult population of earth.
I have a lot less trust in strangers than you do perhaps. Given that I've been harmed by strangers and had other strangers do absolutely nothing at all about it, I don't think my lack of trust is entirely misplaced.
I also have considerable doubts about whether or not people would actually push blue if this absurd imaginary scenario were to become real. I sincerely think that when the rubber meets the road, a lot of people who say they would push blue to save everyone would be faced with the reality that by doing so, they could die and leave their children and spouses without support, they could leave their parents and their loved ones without care or income.
The classic trolley problem is a good thought exercise, but it's a very, very poor model for real life behavior. In the thought problem, somewhere around 80% of people say they'd pull the lever and kill one person to save five. But in reality, they don't - most people are extremely averse to the need to directly cause someone's death. Even small tweaks to the thought problem produce very different results - the variant where instead of pulling a lever you have to actually push one large person onto the track to save five further down produces a significant drop in people willing to do so.
This question, the button question, is very interesting because the framing induces motivated reasoning. Look at how many people in this thread are stuck on "only the red survive" as their motivating factor. The use of language that sounds exclusionary drives a bias. Remove that language, and even though the scenarios are isomorphic - they're functionally and logically identical - people insist that they're different.
Even more obviously, is if you remove the forced choice aspect of having to physically push the red button... suddenly the entire feeling around the choice alters dramatically:
A Blue button appears before you, and you're told that anyone who pushes the button will die unless at least 50% of humanity pushes the button
The actual logic involved is the same. The only difference is that instead of pushing the red button to decline the risk, you just don't push the blue button. Same functionality, same outcome - completely different reception.