A favorite complaint of mine is people saying always, never, obviously, without question, undeniably, 100%, zero and other statements of extremity. I saw a new one over at Althouse, of Rob Reiner saying "Let's be clear..."
Whenever someone starts by saying "Let's be clear," they are doing the opposite. They are taking a chancy speculation that they can't prove and hoping to bully any possible disagreement into submission by asserting it overdramatically, using words like "worst," and phrases like "one thing and one thing only." People are overdramatic for personality reasons, even to the point of personality disordered ones. They treat their opinions as facts because they cannot see the difference. I acknowledge that they may be able to do so in theory, and likely can do so about less-emotional issues. Yet as soon as they care, often for reasons of protecting a world-view, they cannot draw back.
The intent is to obfuscate, not clarify.