The comment was probably poorly received because it presents a lot of things as economic fact, when in reality the evidence is much less conclusive. Many studies have shown the the labor market is far from a simple supply/demand system, and predicting the impact of many policies - looser immigration, minimum wage - is difficult, and quite often runs contrary to the simpler models.

Because it isn’t reasonable - it is confidently worded nonsense.

It's not a reasonable response. It's overconfident, unjustified opinion masquerading as fact.

Two people are sufficient to grey out a comment early on. Probably not worth the meta-discussion over.