Interesting background of the quote: „No one is more hated than he who speaks the truth.“ (Plato)

Studies have been able to prove that people would like to shoot the bearer of bad news and find the person unsympathetic.

The researchers suspect that this is related to the desire to find a sense / meaning in change. In order to this suggestion, bad news awakens the desire to bring things together, that do not have the same origin. As a result, the bearer of the bad news is disliked.

Solution: To reduce this dislike, as the studies showed, it helps to create awareness about the benevolent motives of the bearer of the bad news.
(source: https://psycnet.apa.org/doiLanding?doi=10.1037%2Fxge0000586)