Can you elaborate on the logic that makes preventing scrapers (note, you didn't mention actually hindering accessibility technologies) customer antagonistic?

When a product doesn't show up at all using the [potential] customer's chosen tools (whether a search engine like Google, or an LLM like ChatGPT), then that product is invisible.

An invisible product is one that may as well not exist. When a person can't find it, then they also can't purchase it.