I still feel you're missing some key aspects here.
Pure thrust isn't really what is required to win an air-to-air battle. The US found that out with the F-4 in Vietnam (still one of the fastest fighters ever built). Straight line speed is mostly irrelevant today - being hard to see and target is far more important, followed by launch detection, maneuverability and countermeasures (the latter two of which only matter if you can detect a missile launch in time).
Air battles today will be fought well outside line-of-sight - and it's unquestionable the US has more advanced air-to-air missiles at this point in time.
That said, the J-20 might have more thrust, but it's heavier, larger, and has less capable armaments. The Chinese are not known to possess advanced aerial refueling capabilities either, which is why they have to incorporate more fuel capacity and range into their designs.
None of this takes into consideration that F-22's and F-35's do not operate alone in theater. The US also possesses advanced AWACS capabilities, which can spot and designate targets for fighters from hundreds of miles away from the AO.
> I haven't said the F35 is a turkey. Just that the US decided that other matters are more important than thrust and range for the F35. It may very well have been a correct decision.
I think the US is learning an expensive lesson, and will have to expedite it's Gen5+ or Gen6 aircraft programs to compensate for the very expensive and hobbled F-35's that are being produced today. The F-35 program tried to achieve the impossible, and failed. It's not a horrible aircraft, it just isn't a good enough replacement for all the roles it's trying to fill...
Today, the US has unparalleled experience in operating modern warplanes - lessons that have mostly been applied to Gen5 fighters like the F-22 and F-35 - lessons other nations have to borrow or steal to compete. I feel it's very unlikely either the latest Gen5 Russian or Chinese aircraft can really compete toe-to-toe with a wing of F-22's complemented by F-35's and E-3 Sentry's.
As an aside, Wikipedia and other online sources only list US aircraft's unclassified capabilities. True capabilities will far exceed what is publicly released in nearly all cases - meaning the data provided should be considered a low-bound for capabilities.