To put the above into simple English: Our problem isn't that we give antibiotics out like candy, it's that we give them to the elderly, people with AIDS, the poor, etc. This massively increases the chance of antibiotic resistance developing.
What can we do about it? To start with, run the numbers, make some cost-benefit calculations, and think about the problem. There may be technical as well as social solutions.
Not thinking about the problem, making it harder for the healthiest people to get antibiotics, and pretending that you are doing something is also a viable option. It's what we're doing now.