COVAX had nothing to do with an "open source" model, it was about better distribution of the existing vaccine supplies. There were early concerns that IP rights enforcement might make it harder to develop and supply SARS-CoV2 vaccines, but a patent waiver was ultimately agreed upon. It made very little difference in the end because effective vaccines (such as those based on mRNA) are not like other drugs, and there are inherent constraints to expanding supply or making a "generic" version.
One was https://en.wikipedia.org/wiki/COVAX
From the wiki: """The continued shortage of COVID-19 vaccines delivered through COVAX is blamed on "vaccine nationalism" by richer nations ... """
The efforts were thwarted by investors prioritizing corporate profit.
People might like or dislike it, but this is 100% due to capitalism.
Regarding police brutality, its correlation with poverty is extensively documented by social scientists.