I doubt that you could force all such traffic to be so routed, given that there are coast-to-coast transit networks that would not be affected by a BGP hijack (IGP routes are often preferred to EGP routes). In all likelihood the situation would not last very long as network operators would quickly respond to the anomalous traffic pattern and deploy various route filters to correct the problem.

> Never mind the latency, that pipe isn't big enough for all of that traffic, so it'll effectively be a netsplit.

We've seen this one before... BGP doesn't (usually) look at link utilization, just link status and maybe that the BGP connection doesn't time out, but even a massively overloaded connection tends to have room for BGP pings, so it's less netsplit and more blackhole.

I don't think BGP hijacks is really the way to acheive this one.