>>13464003It's basically correct, but not on the face, just in the pattern it describes.
This comment is describing the self-perception theory of attitude formation, which predicts that where pre-existing attitudes are weak, personal action will create a perception of the self that leads to an attitude. It also describes social proof or social validation, where other people agreeing with you bolsters your attitude.
>>13464056is correct in giving another example of self-perception at work.
>>13464009is also correct in that nobody vaccinated is actually thinking the sentences in the comment, the effect works through less obvious/overt cognitive paths.
