He has written for the Namibian Sun, and has published three books including Persecuted in Search of Change in 2017, The Pain of An Empty Stomach in 2015 and Teenage-Hood & the Impact of the Western World in 2014.
He writes to his late mother on the book's first page of how he is, "constantly thinking of changing my surname to yours as i see no reason of carrying a name of the man i never known and whose family I never met", in reference to his father who died when he was 2.
[12] His publications include; Kalimbwe has participated in African youth activism[13] and was elected student representative council president of the University of Namibia.
[16][17][18][19] According to The Namibian, the student protests in Namibia are happening "against the backdrop of the Affirmative Repositioning youth movement occupying urban land, and the Landless People's Movement reclaiming ancestral land in Namibia; 'Rhodes Must Fall' and 'Fees Must Fall' protests by South African students in their quest to decolonise their universities.
[20] During the #FeesMustFall movements in South Africa, Kalimbwe was advocating for Namibian government to scrape fees for poor students.
Later that evening, New Era (Namibia) reported that the state had lost the case against Kalimbwe whose lawyers had promised legal action against the "unfair treatment" of their client.
[21][22][23] In May 2017, Kalimbwe and three other members of the UNAM SRC organised a protest for increased study areas, a decrease in tuition fees, and against alleged senior staff corruption at the University of Namibia.
The staff member, in emails leaked to The Namibian newspaper, later threatened to prevent the alleged claims by hunting down the student leaders and university employees who provided Kalimbwe with such information.
At the time, he claimed on local told station, Diamond Live that President Lungu and his colleagues had destroyed the "moral fibre of our politics and reduced our people into complete electoral beggers who are given money in anticipation of votes".
[27] In August 2021, Kalimbwe told CNN and Germany TV station DW that the youth vote was central to his party's victory as "18 – 34 year olds lined up to go correct the mistakes of their parents".
During the interview with DW, he stated that it was unfortunate to see "our country being ransaked by one man and his colleagues these past 7 years", in direct reference to former President Edgar Lungu.