Comment by rcxdude

No, even with Starlink lowering the latency to an acceptable level, there's no way to get anywhere near the total bandwidth of these cables with a satellite constellation, there's limits to how much you can transmit through the air (the biggest issue being there's limits to how tightly you can form beams from your satellite to a station on the ground, and those are quite large, so you ultimately can only get a certain bandwidth per square kilometer).

(This, BTW, is why Starlink isn't and will never be a true competitor to traditional ISPs in all but the most sparsely populated areas: they simply cannot support enough users to make a dent in most places)