Why do people think a browser is safe to use? Why do people think any app is safe to use? Why do people think a website is safe to use? Why do people think an OS is safe to use? Why do people think a driver is safe to use? Why do people think a firmware is safe to use? Why do people think a hardware device is safe to use? Why do people think the chips inside are safe to use? Why do people think an ISP is safe to use?

If you have a point to make about it being particularly unsafe or different from any other internet/software trust, make that point. Otherwise you know well enough that there isn't any other option but trust, and people generally trust stuff until given a good reason not to.