Making something illegal isn't "shutting it down".
Your IPFS link is a screenshot of someone failing to access docs.ipfs.io in a standard webbrowser over HTTP.
Are you aware how many people use VPNs? Also take a look at how Tor Project hand out unlisted entry points into their network - IPFS could take a similar approach if it really came to it.
https://www.reddit.com/r/germany/comments/2hxy4j/help_me_ger...
Or blocking the bootstrapping?
https://www.reddit.com/r/ipfs/comments/tzrkoc/is_ipfs_blocke...
There are plenty of options.