I hope its not too little too late, we've known about bacterial resistance for decades at this point. Here is hoping animal feed is next.
Antibacterial doesn't really have a precise medical definition, but in practice they're dilute antiseptics. In many centuries of use, bacteria have not developed resistance to antiseptics. There's no danger of them developing resistance to these soaps either
...and even if they did, that wouldn't mean they were magically also resistant to some antibiotic.
So basically, the marketing people wanted something more than "just soap" so they used antiseptics and made up a nicer sounding word: Antibacterial. You have (and perhaps this was the intent of the marketing people) assumed this has something to do with antibiotics.