Why don't we like people who learn to speak for themselves?

In life, I often meet people who imitate themselves, such as imitating their own pet phrases, accents, idioms and so on. Many of us don't like our way of speaking to be imitated by others. Because what comes out of his mouth is his second image, which has a certain influence on his life. People who can talk are often more popular with others, and his circle of friends will be wider, so he will have the opportunity to become the focus of attention in the crowd.

Our way of speaking represents our own image, and our mantras and idioms are our own characteristics. We use our own unique characteristics to attract others' attention. But suddenly one day, people around you begin to learn to speak for themselves, and they will feel that their works have been copied and stolen. Recently, all kinds of plagiarism are also circulating on the internet, such as plagiarism of TV dramas, plagiarism of variety shows, plagiarism of literary works and so on. Won't these plagiarists feel guilty when stealing other people's achievements?

Let's go back to imitating others. Don't imitators feel embarrassed when they say other people's words, especially in front of the imitated?

Another situation is that when I speak, because I mispronounced a word or a pronunciation, this mistake is always on the lips of others, and I feel embarrassed when I say it from time to time. I think it is understandable that such people say it once or twice as a joke, but if they always say it, it is to use other people's shortcomings to fill their inner emptiness. Such people are very annoying.