I think you lack a basic understanding of electronic warfare. If you say so, do Americans need to retire EA 18G after using it? Even the simplest noise jamming in electronic warfare uses a lot of clutter to drown out your radar reports and communications,You don't have to replace the whole system,In 2019 India was taught a lesson, simply all of India's Air Force electronic warfare capabilities, Lack of a unified consideration, relying solely on self-defense electronic warfare pods bought from Israel and France
What makes you think the Americans don't? Plus when have the Americans ever used all the capabilities of the EA-18G? The only way they can is to go to war with a major power. Anyway, antennas are replaced every few years.
As for Balakot, you can believe what you want, you are a victim of Pak propaganda.