The military took fatboys all the time back in the 60s. They whipped them in shape in boot camp.
PT scores and “weight” became political correctness “tools” to weed out the politically incorrect. Congress can’t reverse that now without upsetting the “politically correct” soldiers who otherwise may not perform their assigned tasks correctly, which is why they did away with the MOS tests.
The fat boys in the 60s are skinny compared to kids today.
In the 1960s being overweight was unusual and obese people were oddities.
Now 42% of the population is obese
Most of today’s are mental nut jobs Enviro Wackos or LTGBQ.