They aren't going anywhere anytime soon. Look at this Google list of the biggest and most important things they make (this is known as "job security"):

RTX Corporation (Raytheon Technologies) produces some of the world's most significant and recognizable defense systems, with a portfolio that includes major missile systems, air defense platforms, and advanced radars. Key systems include:

- Patriot Air and Missile Defense System One of the most famous and widely-used systems globally, the Patriot is a ground-based system providing defense against aircraft, cruise missiles, and tactical ballistic missiles. It is used by the U.S. and 18 allied nations.
- Tomahawk Cruise Missile A long-range, all-weather, submarine and ship-launched precision strike weapon capable of striking targets from over 1,000 miles away.
- AIM-120 AMRAAM (Advanced Medium-Range Air-to-Air Missile) This is a highly recognizable air-to-air missile used by over 40 militaries worldwide and is the primary radar-guided air-to-air missile on many fighter jets, including the F-35.
- FGM-148 Javelin Weapon System Produced in a joint venture with Lockheed Martin, the Javelin is a highly effective, shoulder-fired, "fire-and-forget" anti-tank guided missile system used extensively by the U.S. Army and Marine Corps.
- AIM-9X Sidewinder Missile The most advanced infrared-tracking, short-range, air-to-air and surface-to-air missile in the world, deployed across numerous air and naval platforms.
- Paveway Laser-Guided Bomb The Paveway series revolutionized tactical air-to-ground warfare by converting unguided bombs into precision-guided munitions using laser guidance technology.
- NASAMS (National Advanced Surface-to-Air Missile System) A medium-range air defense solution developed in partnership with Kongsberg, which uses the AMRAAM missile as its primary interceptor. It is notably used to protect high-value assets and is provided to Ukraine.
- Iron Dome System RTX partners with Rafael Advanced Defense Systems to produce the interceptors (SkyHunter in the U.S. version) for the Iron Dome, a widely-used short-range air defense system that has a high success rate against rockets and mortars. 

RTX also manufactures numerous other critical systems, including:

- The SPY-6 Family of Radars for the U.S. Navy's ships.
- The Phalanx Close-in Weapon System (CIWS), a rapid-fire, radar-guided gun system that serves as a ship's last line of defense against incoming threats.
- The Excalibur precision-guided artillery projectile.
- The Pratt & Whitney F135 engine, which powers the F-35 fighter jet, the world's most advanced strike fighter.