> Because mirroring content on IPFS is trivial and transparent to the consumer.
Which is also why a regular consumer should never use IPFS and why prosumer should immediately disable caching and seeding upon install.
> All it takes is a single user (or an arbitrary number) outside of US jurisdiction and the content is more or less DMCA-immune.
Perhaps so, but if your plan for resiliency is based on the kindness of strangers in countries where the DMCA nor censorship does not apply, it's not much of a plan.
Plus you'll still have to seed the original which opens you up to liability, as IPFS does not provide any kind of anonymity.
So, while better than traditional HTTP, IPFS isn't really immune to takedowns nor very resilient.