There might be, but we've never seen one. The culture with the lesser weapons is subjected to inferior quality of life when compared to the oppressing culture in all cases in history.

So, it might be worth entertaining whether you can convince everyone in your culture to be subservient?

Here again, historically that's never happened, so it's not worth believing. And that's just to check if there's a better solution. You might arrive at an even worse outcome.

Revolutions require even bigger weapons, despite sometimes having better long term outcomes. How many people have to die to test our theory?

Genghis Khan created centuries of peace horrifically with bigger guns. The Ottoman Turks similarly did. The US, now. And many more cases that we know of. All of these examples coincidentally allowed multiculturalism, and even more, they enforced it as a matter of law. Just as an interesting side point.

Life is terrible in all cases in history where it's not clear who has the biggest guns. That's always been the demarcation of the beginning of a new regime at the cost of millions of lives.

Revolutions are horrible. That's what we know for sure.