If you’re trusting any other VPN provider, then you’re already willing to trust someone
It's not an issue of trust but of obfuscation. You're sharing IPs with other users
A VPN gives you very little added privacy.
Wrong.
No matter what you use, you’re really only protecting yourself from your own ISP.
Wrong again. You're protecting yourself from having your traffic logged by the sites you visit. Every modern website is collecting this information and selling it to data brokers.