Not lobbying for larger aircraft as a solution, but clearly there is a need to consider additional frequencies using smaller single-aisle aircraft such as those parked 737-7/8/9s.
I am for keeping middle seats open for safe distancing, but flexibility to react to travel demand should be adopted. UA should have advance knowledge how full the planes will be and can react accordingly by scheduling an additional fight (from the hub airports at least where some planes may be parked)
One cannot just pointing to media or bloggers narrowing in on United for bad press, it takes two to clap. UA should look at itself why they have been doing a terrible job in terms of negative publicity.