crab mentality
A phenomenon in which a person or a group of people attempt to hinder the progress or success of others, even if such success does not directly affect their own well-being.
noun
A mindset; a way of thinking; a set of beliefs.
Before he can succeed, he will have to shed the mentality that he can get by without hard work.
[…]with a mentality anchored in a profoundly influential and persistent hostility to central features of the Enlightment faith in the theoretical and practical autonomy of the human subject.
The characteristics of a mind described as a system of distinctive structures and processes based in biology, language, or culture, etc.; a mental system.
1978, Edward Proffitt, "Romanticism, Bicamerality, and the Evolution of the Brain", The Wordsworth Circle, Vol. 9, No.1, reprinted in Kuijsten, 2016, page 129. […] the new mentality [of Romantic poetry]...is a mentality of self-authorization.
Our mentality — whether bicameral or conscious — is thus more a function of social context, language, and forms of communication than a hard-wired neurologically-based system.