No.
I’ve always felt Flea and Anthony are the irreplaceable members, Chad too - think it was 87 he arrived…
Guitarists? Meh. They’ve had about 10…ok 8.
Shame Dave Navarro didn’t get another crack of the whip, but then we got Californication.
Really enjoyed what Josh Klinghoffer did - and he was there for 9/10 years?!
I think people have a concept of a “classic” lineup and they will be associated with the time of greatest success/creative output…