People keep mentioning the floppy drive, this is not even remotely comparable. Most people stopped using floppy disks and CD's years before Apple stopped including them, with the headphone jack the same can not be said. Also, the design compromise to keep a headphone jack would not greatly change the end product whereas as CD ROM would completely change the Macbook, the only reason Apple got rid of the headphone jack was to sell 160$ airpods. Apple is making billions with this move of theirs, and it was the right move because Apple's number one concern should be their shareholders.