Or you can grow your own chicken if you live in the country. It's not a very labour intensive task and they also eat most of the vegetable waste from the household.
If a large enough fraction wants antibiotic free meat of course the fraction of producers making it will adjust accordingly. More importantly, as the fraction of producers who do use antibiotics shrinks, so does the resistance for legislation banning it altogether. This is already done in many countries so should be doable everywhere.