I personally had my eyes opened during the run up to the Iraq war in 2022. Pretty much every single news org with national recognition seemed completely incapable of the smallest amount of critical thought. They would basically parrot the whitehouse/etc press releases, and never question a single thing in them.

So, the behavior you point out is enabled by politicians who show such bad judgment in such a critical area, and yet few if any lost their positions over their votes. I personalty have been wondering for the past few years how many of our leaders are actually there of their own accord, rather than put there by various backroom cabals of business leaders and intelligence (foreign and domestic) agencies that want to put their thumbs on the scale with a representative or dozen. How would you ever know, except by their behavior.