Colonial activities are not necessarily American plantations. I still don't understand. Can you be more specific?

Colonial activities refer to the armed conquest of other countries or regions by force, as well as the economic and political benefits obtained in the conquest activities, which are embodied as follows:

1 Directly or indirectly ruled the colony, carried out armed migration, and imposed heavy taxes on the colonial people (this was reflected in the British conquest of India, Japanese occupation of Korea and northeast China).

2 directly plundering colonial wealth (local specialties, precious metals), Spain and Portugal colonized Latin America and the Caribbean (directly plundering local precious metals), and the Netherlands colonized Southeast Asia (directly plundering spices).

Slave trade, the most typical of which is slave trade, others include deceiving American workers and forcing Indians to serve in mines (China)

4 commodity dumping, colonial activities provided a closed and exclusive market for the suzerain country (colony 0), which facilitated commodity dumping.

5. Compulsory production refers to planting only one or several cash crops in a colony or a region according to the needs of the suzerain country (for example, sugar is grown in the West Indies, coffee, cocoa and tobacco are grown in South America, spices are planted in Southeast Asia, and rubber is planted in Southwest Africa, especially in Belgium).

The plantation economy you mentioned is only a concrete manifestation of forced production and belongs to a small part of colonial activities.