In Western countries, companies serve both oppressors and others. What is the ruling on the income generated from these companies? Can it be considered Halal by paying Khums, given that not all customers are oppressors?
Companies with mixed income (Lawful and unlawful income) should not be involved in killing or supporting killers of innocents or dealing with alcohol, pork, gambling etc. Working in such mixed income companies then is considered lawful.
Wassalam.