Yes, it would cost them a lot, billions probably, as it would be unconstitutional action. They would be forced to close the shop if they continued.
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It could however work if they throttle priority isp traffic to counterbalance.
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It could however work if they throttle priority isp traffic to counterbalance.
How? Google is a private individual/company; they can deny anyone service, so long as the reason is not discriminating against a protected class.