Answer:
Economic grievances and Lack of consultation
Step-by-step explanation:
The Malayan Union was unpopular with many Malays because it promoted a capitalist economic system that was seen as benefiting non-Malay entrepreneurs at the expense of Malay farmers and small traders.
The Malayan Union was imposed on the Malay states without proper consultation with the people or their leaders. Many Malays felt that their opinions and interests were not taken into account.