Wait until measurable abuses actually exist, and persist for year or two – enough time to understand – rather than acting on paranoid fantasies (like the "cable tiers" mockup) that might never materialize.
For example, what if ISPs roll out traffic-preferences-for-pay... but the base bandwidth available to customers, and sites that don't opt to pay for preference, also keeps improving, on a price/performance basis? Would that still be an emergency requiring novel nationwide regulation?
And wouldn't we learn something if some local markets showed abuse or lagging price/performance, while others thrived? Couldn't we, and especially the lagging jurisdictions, then do the minimal targeted reforms to improve results based on actual history, rather than a theoretical "neutral net" ideal?
Note that unlike the shared broadcast airwaves, the economic case for wires being a 'commons' needing public management is weak. There's already at least 3 sets of wires running to most structures – electricity, phones, and cable – and more could be added if those aren't satisfying the customers. And even electricity – far more foundational than internet – is regulated in a diverse manner locally, not nationally.
Wait and see and let localities and businesses experiment is just fine - it's what got us to this point, after all, and the internet is doing just fine – albeit prone to occasional panic attacks: "Death of the Internet Predicted, Film At 11".