Hanlon's razor + Sinclair's dictum[a]:

Never attribute to malice that which is adequately explained by ignorance, especially when such ignorance is motivated by financial interests.

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[a] https://www.goodreads.com/quotes/21810-it-is-difficult-to-ge...

Turning a blind eye to obvious malice in exchange for the temporary bliss of apathy is a form of malice all on its own. Hanlon's razor is one of the dumbest memes ever devised, please stop promulgating it.

    Occam's Razor makes the cutting clean

is a line in a song that's not really intended to have a message, but for some reason it remains completely stuck in my head