Not sure why you're specifically against Palantir. Tableau basically does the same thing. Excel did it before either product. Police, NSA, CIA, FBI use Excel, AWS, GCP, Oracle, twitter, tor, bitcoin (insert any tech product) etc... If Palantir supports surveillance because their product can be integrated with municipal data, then virtually every tech company supports a surveillance state because any tool can be leveraged by these law enforcement entities to surveil a population more effectively.
That's a weird comment. From what the OP described, the software is a data visualization tool. Palantir the company doesn't hold the data based on what the OP said. The govt or whoever gathered the data would be the owner of the data. It doesn't appear the Palantir software itself does the original data gather.
Do you share the same feelings about Google and Facebook? The level of user tracking undertaken by the aforementioned companies is staggering. Google and Facebook know practically everything about everyone. Both Google and Facebook have federal contracts and have for years.