Your interactions with ycombinator.com to read this discussion and leave your comment were logged in an access.log file, which is a form of telemetry. Should that be opt-in? If so, a necessary tool for managing websites will be destroyed. If not, if an exception to your law is made, then the tools and applications you're worried about will end up with features that integrate with remote websites that are necessary for their function.
Don't be so quick to call for laws.