Crabs in a bucket is probably the bandit left triangle, people competing by dragging others down.
Flaizers are the lower left quadrant, what original author refers to as "stupid" — causing harm to themselves and others with no benefit for any parties.
Flaize = flail + lose. You're flailing and you're losing (and taking other people down with you).
"The world is full of flaizers, non-stop flaizing," encompasses laws 1 and 3.