What do we call the process that diminishes the diversity of the world's cultures as a result of foreign influences that inundate local practices, products, and ways of thinking?

The answer is Homogenization
Homogenization could only happen if all different groups in sociey are willing to tolerate each other and find a common middle ground.
In general, homogenized nations tend to have lesser internal conflicts between social group members.

Is it just free response or do you have multiple choice?