Cancel your prime account. Walmart offers free shipping just as good as them. You want to disincentivize bad behavior? Stop patronizing the assholes who keep abusing you.
They also comingle Walmart merch and "pro sellers" in search results which are often both in the same local store and upc ergo the try to trick you into buying the toilet paper that they pre sold to a scalper selling it for 80% markup.
Then they try to let propellers set their own return policy...
Walmart is only good at logistics and labour exploitation. Amazon is at least also good at websites and returns.
Bad behavior is everywhere. Actual convenience is rare.
Source: in ecommerce