I'm sure most here have at least seen the question asked, but for those who want to know the original's wording:
"Everyone in the world has to take a private vote by pressing a red or blue button. If more than 50% of people press the blue button, everyone survives. If less than 50% of people press the blue button, only people who pressed the red button survive. Which button would you press?"
Common Responses I've Seen:
Red: "If everyone presses red, then no one will die guaranteed", "Pressing blue is suicidal, don't make yourself a martyr", "This isn't a morality question, but a logical one".
Blue: "Pressing blue only needs to pass 50%, I believe in humanity", "I don't want to live in a button where all pressed Red", "Red pressers are selfish and think blue pressers should die".
These among other harsher comments have been floating under posts for as long as the question has been spoken, but something I noticed is how evenly they split on the gendered 'moral languages' described from Carol Gilligan, an author who has spoke a lot on the 'ethics of care', a practice that tries to focus personal actions to the interpersonal rather than on grand ideals.
There are 2 languages, the first is the language of justice, usually gendered to men which prescribes itself as the language of rationality. For example, in the Heinz dilemma (https://en.wikipedia.org/wiki/Heinz\_dilemma), the language of justice would firmly stand by the choice to steal the medicine, as depriving a life for payment is considerably less moral than stealing it, reflected as appealing to the 6th Stage of Kohlberg's moral development (Spirit of Justice > Word of Law).
In contrast, the language of care, often gendered to women, is the language of reciprocal action. In comparison to stealing in the Heinz dilemma, caring would include thinking of other ways to handle the situation, such as a payment plan, the ways in which your robbery may be halted, and the others your action of stealing will impact like the doctor. Compared to the 'rational' choice, reciprocal relationships and the means of managing them call the subject to look at all angles and has no clear answer.
Bringing this back to buttons, the red button pressers clearly and firmly believe in the 'rationality' of their choice without considering the circumstances of others. Not in a selfish way per se, but in that they know their choice is the correct one. If someone does not believe in their choice, then they are foolhardy, illogical and possibly suicidal. Because they are right, everyone will logically also select their choice, even if its clear others don't agree. This can reflect back onto philosophical history of Western Europe, where many parts are assumed to be the norm for everyone and uninfluenced by their environment. When people speak of utilitarianism, deontology and the like, very few outside academic circles consider that we talk of them like they can be applied universally and not within their regions, when we often paint the beliefs and practices of places like China or Sub-Saharan Africa by their regionality. Many commenters will likely live in NA or Europe, which have stronger cultures of individuality then the rest of the world, and would inherently have a greater distrust of strangers. They make the assumption that their choice is not colored by and individualistic and mistrusting society with large disconnections, but instead the default and 'natural' way to think.
Blue button pressers, on the whole, identify their reasons with how other people will act. They believe their family will likely pick blue, that communities they can never know will pick blue in a bid to save others. How a world where only those who could think to save themselves would be far worse to live in, how the guilt would weigh on them, all these considerations and more are far more varied and complex in comparison. According to Levinas, it is our duty to The Other (all that lies outside the self) which gives us inherent meaning and makes us individual. Pressing blue is more than a choice, it is a statement to accept the consequences on the belief that your choice will save others. It factors in the differences between people, the likelihood on how various backgrounds will encourage people to make a choice based on their personal morals and how many are willing to risk their lives to help The Other. You state that your duty to he potential Other outweighs the gains made by picking your own safety and putting those who press blue at risk.
TLDR: Interesting organic split on this question divides into language of justice and language of care.