A couple years back the Navy asked congress for funding to demonstrate taking down an inbound saturation attack of 500+ missiles, probably as a deterrent to China. Congress declined.
When people say "hypersonic missiles" they mean missiles with a hypersonic glide phase, which have non-ballistic flight paths and can't generally be intercepted by anti-ballistic-missile countermeasures.
Sure. And carriers can simply launch their reusable hypersonic smart drone swarm shields and submerge underwater.
Not sure if you were serious or not, but:
It's hard to hide a strike group. Even civilians are tracking them these days with commercial sattelites:
https://www.forbes.com/sites/hisutton/2020/05/07/the-realiti...
US itself talks about sending out hundreds of cheapish drones in a swarm (5 km spacing) to seek out all naval assets over an area.
It would make sense for equal economies fighting.
You know how everything in our lives is slowly becoming smart? This goes for all the weapons too.
https://en.m.wikipedia.org/wiki/Anti-ship_ballistic_missile