There are a lot of regulations to stop monopolies , which end up making your point of "taking your business elsewhere / signing up for new internet provider" near impossible, because monopolies prevent competition in most cases, or competition that could harm that monopolies business. One of capitalism's biggest flaws is the monopoly part, and having regulations to stop that(therefore regulated capitalism), makes it the best economic system humans have figured out(maybe one day someone will figure out a better economic system). The point of net neutrality is to stop ISP's that are monopolies(or almost) from shutting down competition that their other products have. If Verizon wants to shut down competition in streaming videos so that a subsidiary of them, EdgeCast, becomes more popular due to lack of options, they easily could with no net neutrality.
Anyways, I'm pretty sure you're trolling so I wasted my time.
Side-note: To debunk unregulated capitalism, all you gotta do is use what Marx originally said about Monopolies. Regulations prevent that, but also make it regulated capitalism, which is harder to debunk.