Why do atheists try to demonize god?

It is bad enough they reject god but why do they demonize the one who they say doesn't exist.

They talk about god being a "sadist" who enjoys people suffered but can't know if that is the reason god does not interfere.

The bible bothered specified that god "felt sorry" when his people suffered in book judges 2, 18 not a sadist.

not Interfered due to SINS not due to sadist , but why demonize god?

Why do atheists try to demonize god?
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