That's probably what the governments of ostensibly democratic countries were thinking when they decided to change their demographic destiny without actually getting the consent of the people first. "The people who complain are reductionist and irresponsible."

Please explain EXACTLY what is being removed from the argument, that if added, would change the argument in a meaningful way.

Labeling something reductionist doesn't mean it's reductionist, nor magically make the argument go away like you desire.

Even the most casual possible reading of history will give countless examples of governments acting against the wishes and best interest of their people, and instead acting in the best interest of the government. You can pretend otherwise, but that's choosing to be ignorant.

The same idea applies to the military-industrial complex in the US. Very few people are clamoring for further war. But neither major political party offers a legitimate alternative. There's no voting against it. Lobbying and direct monetary gain by the very top of society mean those in power want it, because they stand to gain personally, even if some recruit from a downtrodden town gets his legs blown off.

Likewise for mass immigration. The people in charge of major companies love reduced labor costs. And governments love increasing their tax base. They're the ones who get a say. Nobody else is even asked.