Again, you'd need a bloody constellation of satellites to even approach the capacity of one cable.
That's not true at all.
What you'd need is a orbital ring of line-of-sight satellites built for 2-way that act in the exact same manner as a sonnet ring.
This is easily accomplished but requires a huge amount of overbuilt ports and extensive fiber fed land based uplinks.
I suspect it's cheaper than trying to run a fresh fiber across the ocean and has a huge advantage of shifting termination points overseas.
If you really wanted Sov....you can't just terminate in England.
You need to be able to reposition at will.
It would be far more redundant.
Just sayin.
J