Probably the huge tax payouts that they get to keep growing and then keep the same fiber rolled out with tax money dark to falsely create a narrative that there isn't enough pipe.
2. What if they forbid some traffic?
Yeah, enshrining that they can't is the WHOLE POINT of enforcing net neutrality.
3. Unlimited is not warranted unless it's being paid for.
It is being paid for. The US of A has some of the highest cost of internet for the lowest level of service in the developed world. You know that there are services in small farming towns in Romania (fantastic country, great food, great people) that have better access to internet than some cities in the US?
4. Prior to the rule change did we have this problem?
YES, it's why net neutrality was put in place in the first place. It's like you willfully chose to not do any research into the topic.
This whole idea that the market in any way helps the consumer is fallacious. The market helps businesses, which can, on the whole, help consumers when regulated by a sane government that has the interests of the people at heart. We're so far into regulatory capture at this point that we should be rioting. You cannot have a market with a natural barrier to entry or high startup costs that can in any way can be competitive without government intervention.