Irrationally? The man fired tens of thousands of American citizens from their jobs on a whim, disproportionately veterans. Failed at his ultimate goal after firing everyone, and then just left.
Seems very rational to hate someone who messes with your livelihood to stroke his ego
Is also partially responsible and yet for the death of hundred of thousands of people around the world, if not more via the gleeful "deletion" of USAID. Musk is an evil narcissistic stain on humanity.
https://www.cidrap.umn.edu/chikungunya/quick-takes-death-tol...
Dont forget stealing and leveraging all of journalist and politician Twitter phone data for his own nefarious means