You are the one that is wrong. UA is not any better than US. Both airlines have their good points and their bad points. But here are some big points in which US is better than UA:

1) US gives its elite members unlimited complimentary first class upgrades, UA
does not. Granted US first class is not the best, but its a lot better than sitting in coach or E+.
2) US has hubs in locations that are not as affected as much by weather problems as UA.
3) US support departments (website support, refunds, customer relations, etc.) are still based in the United States. When you call those departments you get an agent who is here in the States and speaks English. The calls dont get farmed off to India.

So if I were you, I'd rethink saying I am 100% wrong. Plus if you have such a dislike for US, dont fly on them. Stick with flying on UA.