I think it's moreso an accurate description of life under neoliberalism, and must be paired with the fish net scene in finding Nemo. The crab in a bucket effect is caused by a lack of solidarity and class consciousness
Are you not familiar with the Crab Bucket's use in the wild, comrade? It's a story often used by evangelical preachers and motivational speakers in the US to encourage individualism and encourage people to abandon the "haters" in their life. That graphic I posted is the use of the phrase "crab bucket" in books. That spike starting in the late 80's almost assuredly began with a flood of self-help and personal productivity books popularizing the parable. It is neo-liberalism's essence.