Damned STUPID Priest yesterday . . .

[Angrboda]

The new Khmer Rouge government under Pol Pot sought to systematically obliterate Buddhism from Cambodian society.

Destruction of Buddhism by the Khmer Rouge

In 1979, after the Pol Pot government had been forced out of Phnom Penh and the new government of Heng Samrin had assumed power, there were probably fewer than 100 Khmer monks left, the vast majority of whom were living in exile in Vietnam. The Khmer Rouge declared Buddhism to be a "reactionary religion" and denied its adherents even the theoretical rights accorded to other religions in the constitution. In 1978, Yun Yat, minister of culture in the Khmer Rouge regime, told Yugoslav journalists that "Buddhism is dead, and the ground has been cleared for the foundations of a new revolutionary culture." If the religion was dead, that is because the Khmer Rouge had killed it. An estimate made in 1980 showed that five out of every eight monks had been executed during the Pol Pot regime; those monks and novices who were not killed were forced to disrobe, Temple-monasteries were turned into storage centers, prisons, even extermination camps. Images of the Buddha were often decapitated, desecrated in other ways, or buried.

Source: https://www.culturalsurvival.org/publica...n-cambodia

If this is a response to my request for a citation, I'll note that it doesn't support either horn of your claim that the acts of the Khmer Rouge were motivated by atheism or a desire to promote atheism, or that they were motivated by a hatred of religion.