The phrase "I'm not being rude, but..." or similar variations often precedes a statement that may come across as critical, blunt, or impolite. It is a common linguistic tactic used to soften the impact of what could be perceived as a negative or offensive comment. By prefacing the statement with "I'm not being rude," the speaker attempts to distance themselves from any potential negative implications and seeks to lessen the chances of causing offense or hurt feelings.
However, despite the use of this introductory phrase, the content of the statement that follows can still be perceived as rude or insensitive by the listener, as it may still contain criticism or unfavorable opinions.
In some cases, people might use this phrase as a way to justify their forthcoming statement or to defend themselves against potential backlash. It can be seen as an attempt to appear considerate while conveying an unpopular or contentious viewpoint.
It's worth noting that this approach might not always be effective, as the listener's perception of rudeness can still be influenced by the content and tone of the statement. Being mindful of how we communicate and choosing our words carefully can contribute to more constructive and respectful conversations.