I am not sure if you ever read the requirements of specifically designed interceptors - but imho you should try to revisit those descriptions.
It boils down that fast climb, very good high alt performance, high speed and heavy armament are the main factors - with the target to intercept high flying targets (mainly bombers). Best example is the P-38 which ended as twin boom due to the requirements of a turbo supercharger.
That planes which are designed as air superiority fighters were used as interceptors is no question. But the climb rate and speed was a goal in order to get the upper hand in combat and a result of low weight, available hp and aerodynamics. To fight enemy bombers you needed fighters with more punch, that’s why the US favored the 37mm cannon for the P-38 (and P-39).
So from a pure technical perspective the standard 262 A-1a is no real interceptor as the main goal was to overcome the mach limitations of props (= higher top speed). It is also no question that the armament (Mk 108 & R4M) was optimized to kill bombers - but for everything outside the Heimatschuetzer variants with rocket boosters - there is imho historically seen no justification for an IC spawn.
That gaijin spreads rather randomly IC spawns is first and foremost a pure “balancing” decision. Most of the planes with IC/Air Superiority spawn are not specifically designed interceptors (like P-61, F-82 or 190 As) whilst gaijin refuses to grant air spawns for “real” interceptors (like XF5F, J2Ms, Bf 109 Z or Ki-94).
If that’s true there are just logical explanations:
A) The BR of the 7.0 version is too high or
B) The BRs of their adversaries are too low
A word to the F-80 A-5. I am not sure if you are aware of the fact that the plane is a post war 1946 production with the J-33-A-17 with 4.600 kp thrust. The first 1946 production variants of the P-80 A-1 had the J-33-A-9 with 3.860 kp thrust - which made them much slower.
So setting a 1944 production Me 262 A-1a vs a 1946 F-80 A-5 production is a classical confirmation, that:

is not valid for US players. The 262 was described by the former USAAF:
After the war, the USAAF compared the P-80 and Me 262 concluding, “Despite a difference in gross weight of nearly 2,000 lb (900 kg), the Me 262 was superior to the P-80 in acceleration, speed and approximately the same in climb performance. The Me 262 apparently has a higher critical Mach number (the Me 262A’s being at M 0.86), from a drag standpoint, than any current Army Air Force fighter.”[12]
Same as with P-80 A-5 (1946+) and the 1948 (!!!) production F-80 C-10 - the Sea Meteor was converted from a F.3 - with 1.490 vs 930 kp thrust of the F.3 - and if you see the first production model with Derwent V engines (the F.4) also a 1946 plane.
In other words:
The 262 A-1s was far superior compared with the Meteor F.3 and the YP-80 - as the main decisive factor “critical mach number” was higher - what makes a slower aircraft inferior by default.
But “Nazi stuff” can’t be superior - therefore the BR of 7.0 is comprehensible from their pov.