Hating Palantir without having any idea of what they are is the trendy thing to do. Their leaders are toxic which doesn’t help the case, but the core issue really is just that in this political climate, people all over the western world don’t trust their governments, and it’s also trendy to distrust anyone making money, as well as tech companies - especially those involved in data and AI related businesses - so the fact that Palantir makes these distrusted actors more competent while making money doing it, is seen as siding with the devil.
So it’s a trust problem, if the government were seen as effective and worthy then I want them to be effective, which includes using the data they collect effectively. In this climate trendy people would prefer that their corrupt government is also fully incompetent to limit the effect of the corruption.