Everyone else is irrational

The button booths emit a strange toxic gas that causes people to very briefly become completely irrational and unpredictable. Everybody is compelled to mash a button based on some completely irrational bias. You cannot at all be certain that it will be an unbiased 50-50 coin flip thing that statistically ensures a close result, although that is a possibility. Or the irrational compulsion might lean significantly, or even staggeringly, one way or the other and you have no way to know or predict it. Even a unanimous result cannot be logically or statistically ruled out based on what you know about the gas.

The gas has no long term effects, it just makes everyone very briefly irresponsible for their actions, and then subsides immediately after they have pushed their button.

For some reason, you seem to be immune to the gas, and feel still fully in charge of your faculties. It seems very likely that you're the only rational chooser left, or at most you're one of a vanishingly small number.

You still know what the buttons really do: blue pressers will not survive unless they're the majority. What do you press?