first defining fit is important. this is the dictionary definition:
adjective
adjective: fit; comparative adjective: fitter; superlative adjective: fittest
1.
(of a thing) of a suitable quality, standard, or type to meet the required purpose.
"the meat is fit for human consumption"
synonyms: suitable, good enough; More
relevant, pertinent, apt, appropriate, suited, apposite, fitting;
archaicmeet
"fit for human habitation"
2.
in good health, esp. because of regular physical exercise.
"I swim regularly to keep fit"
synonyms: healthy, well, in good health, in (good) shape, in (good) trim, in good condition, fighting fit, as fit as a fiddle; More
athletic, muscular, well-built, strong, robust, hale and hearty, in the pink
bodybuilding in its early understanding of the definition of the word, yes. they are fit. but then it literally meant, to build the body. nowadays bodybuilders will use any drug, any exercise, any food, any supplement, anything to look a certain way irrelevant of health, or fitness. its all a beauty pageant and health and fitness be damned. that is why they only maintain this for a short period of time. they cant and be healthy or fit.
this includes any sport as well. fit is relative. those that do GPP are likely more fit. those that crosstrain are likely more fit. to me fit is an overall betterment of the body. so unfortunately, at least by written decree, crossfit tries to make you more fit. now in practice they fail miserably but that is a discussion for another time.