5000 years of oppression is a big fat lie promoted by vested interests.
"Supremacy of brahmins" is yet another lie promoted by shameless anti-India vested interests.
According to the old varna vyavastha (old caste system), practised for thousands of years, Brahmins were restricted to temples, vedas and religious activities only, they never accumulated any wealth or amassed any property in the past. All the wealth was with vysyas, kshatriyas and sudras.
There were no "jobs" in those days. Jobs came up only after Britishers came to India.