The Lumumba speech in 1960 made the listeners of Belgian feel uneasy and threatened. In the speech, Lumumba, who was then the newly-elected Prime Minister of the Congo, criticized the Belgian colonial government's policies and called for greater independence and self-determination for the Congolese people. This message was seen as a direct challenge to the Belgian government's authority and control over the Congo, and many Belgians felt that Lumumba was trying to incite rebellion and undermine their interests in the region.
Furthermore, Lumumba's speech was seen as a threat to the economic and political interests of many Belgians, as the Congo was a major source of natural resources and labor for Belgian companies. Lumumba's calls for greater control over these resources and for the Congolese people to benefit more from the country's wealth were seen as a direct challenge to the economic interests of many Belgians.
Overall, the Lumumba speech was seen as a threat to the status quo and to the interests of many Belgians, and it helped to fuel tensions and conflict between the Congolese people and their Belgian colonizers.