I mean, it'd just fallover to a backup location Aside from some small outages, it'd have no real major impact on the availability of the interent and websites and the greatest impact would be obviously the potential loss of life in such an attack.

Now, backhoes, scuba gear and fiber lines is another story if internet infrastructure disruption is a goal... It'd all get replaced / patched eventually but it'd still fuck shit up for a while.

Corporate cocksuckers deserve to die. Infrastructure is replaceable, specialists servicing it less so. If they have no morals, let them be deterred by fear. Those who oppress people for corporate blood money should know what's coming to them.

Apparently in 2012 there were telecommunications outages in nine African countries because of a passing ship dragging an anchor.

https://www.computerworld.com/article/2729988/wreck-of-undersea-cables-shows-the-backhoe-isn-t-the-only-natural-enemy-of-the-internet.html