"Russians & Chinese are not in hurry, they have enough time and money to eventually catch up and even overcome technology used in Raptors"
One raptor, in competitive tests against six F15's destroyed all six before it was even seen. And the F15 was viewed as the best fighter in the world.
The Raptor makes the worlds top fighter aircraft obsolete.
Not all of China's adversaries will get to operate the Raptor.
"One raptor, in competitive tests against six F15's destroyed all six before it was even seen."
Which means very little if it is out-numbered 10-1. Remember the Raptor has a unit cost 10 times that of the SU 27
in the last 5 years, the US economy grew by one "China".
The Chinese should be thinking about what we have coming after the Raptor. Consider fighters that have technology from the Airborne Laser Lab..... Their fighter may be agile for a fighter, but it is unlikely to out maneuver laser beams....
Fighters are fun, Bombers make policy.
Democrats are currently selling the plans to the raptor no doubt.. or they will be in a few months..