BGP hijacking is pretty obviously bad-actor from the perspective of companies trying to give internet access. I do see your argument for a slippery slope, but

BGP hijacking is pretty obviously bad-actor from the perspective of companies trying to give internet access. I do see your argument for a slippery slope, but in this case the example given is clearly in the core competency of the company. There's no morals needed; this is how the internet is supposed to work, and you've bypassed that. Kick him out. We don't think about slippery slopes when a renter starts burning the house down; it's clearly within the homeowners rights to start evicting.