Starlink and Tesla will be able to mine a huge amount of data from its users. Not only that, but I also heard that Google Cloud is also partnering with Starlink. Also, Tesla cars are full of cameras and sensors which are probably active 24x7. Not only that, Tesla cars continuously upload and download data. These companies are definitely great in innovation and I really like it but they get access to a lot of data.
Right now I don’t worry about him. Tesla is just one of many car brands, and Starlink won’t be used much outside of remote areas with no wired internet access. I don’t see his products/services reaching nearly as many people as Facebook