Sadly, military these days have so many policies against the use of profanity and physical disciplinary actions. My old man was a Marine as well through '72-'80 .. he said his Boot Camp days were torture for any type of failure or mistake.
Now it's all about making someone run around the barracks or scrubbing with a toothbrush, moving an entire sand hill with a cup then rebuilding the hill in it's former spot. Basically slaps on the wrists.. but I can agree with more proper screening rather than an urge for as many recruits that they can get their hands on. Fortunately, Marines have a more strict enlistment requirement than other branches.. but I've been out for a couple years now.. not sure of any changed/new policies since.
Like I tell most people interested in Military, it isn't all that the movies or recruiter tells you. Like you say, it's a lot of cleaning, boredom and useless day activities. Fun part of military was Boot Camp and SOI, atleast for me. 29 Palms sucked balls.. but war games have it's moments. After that, it was all downhill, even when deployed. Sitting in the desert with a thumb up your ass.. your worst enemy was boredom or a bad case of the sh*ts.
but them MRE bombs .. can't forget that.