I'm often accused of being a radical, but I'd like to point out that MiHsC is actually far less radical than dark matter. Consider dark matter. Its supporters believe that 96% of the universe is in the form of a new and invisible form of matter and energy that has a weird structure, as dark matter for example must cling to the edges of galaxies and stay away from their centres, so it needs an entirely new dark-sector physics to explain it.
In the meantime, MiHsC says only that we need to fully accept both relativity and quantum mechanics and therefore the horizons and Unruh waves that they have already predicted and, here's the crucial new bit: assume that inertial mass (never understood before, and Higgs only predicts 0.01% of it) is caused by the Unruh waves being modified by the horizons. The result is a dynamics far better than the usual one since it predicts all dwarf galaxies, spirals and clusters without any tuning, whereas the dark matter hypothesis needs a new type of matter and its physics to be added, and a different amount for each galaxy. This is why it is strange that dark matter-ists accuse MiHsC of being a weird theory out of the blue. The pot calling the kettle black.
To make this point even more simple mathematically than before, I've recently submitted a paper showing I can derive MiHsC (with an annoying factor of 1.26 probably caused by my simplification of the shape of the Rindler horizon) in 10 lines just from Heisenberg's uncertainty principle and special relativity, similar to my approach to gravity in 2014 (see ref). So I'm just waiting patiently for the standard first rejection...
McCulloch, M.E., 2014. Gravity from the uncertainty principle. A&SS, 349, 957-959. Video