If the FCC were dismantled, the knock on effects would be worse than the disease. No radio frequency regulation (bye bye wifi and cell phones, let alone amateur radio). No enforcement of TV content. Prepare for all the "fucks" and breasts your prime time show can fit in. Say good bye mandatory landline coverage (and the emergency capabilities thereof) for rural America (about 98% of the country, land wise).

This is, for better or worse, a very minor aspect of what the FCC provides.