left to the mercies of

leave to the mercy of :

Leave someone or something exposed to probable danger or harm

To allow one to face the punishment or rebukes of something or someone who will not show them any mercy, kindness, or sympathy.

مورد لطف/ملاطفت قرار دادن ( کنایه از مورد شقاوت و بیرحمی قرار دادن )

‘the forest is left to the mercy of the loggers
جنگل مورد لطف چوب برها قرار گرفته است!