Physics Confusion = Wrong Assumptions
The biggest and most important of the many questionable assumptions that have plagued theoretical physics in recent decades is the unquestioned assumption that all the answers must be found in the High Energy Physics domain. An obvious example, as repeated above, is the decades old, and chronically rejected by experiment, assumption that the dark matter must be a hypothetical subatomic particle. This unfortunate and unscientific bias allows theoreticians to remain blind to the primordial black hole candidacy for the dark matter.
The HEP bias may also be the main reason for the remarkable lack of progress on Quantum Gravity, and the failure of string theory and supersymmetry to find a unifying upgrade for the clearly provisional Standard Model of microphysics.
Antidote = Try New Assumptions.