No snitching period. Why would you side with a massive corporation that steals from mentally disabled people and old people, decimated America as we knew it, destroying every local economy, and demanding prices so cheap from brands that they've made shittier products with slightly different labels to meet that demand? Fuck Walmart. If you rat someone out for stealing from Walmart, then you're a brainwashed asshole.
That feels like an eye for an eye logic. Shoplifting has a very real impact and incentives dystopian surveillance even more.
I don't normally mention people stealing but that's mostly because it is plain obvious as they are terrible at being inconspicuous. They only time I mentioned that I saw someone stealing is at a dollar general where there was a single employee.
Also if you do see someone stealing do not approach them or accuse them of stealing. That can go very badly and could lead to a serious escalation.
Fun fact, dollar general has a habit of locking employees in the store and demanding they do work off the clock.
Dollar general has stolen now more from it's own employees than anyone has ever stolen from dollar general. That's before you get to the horrifically unethical shit they get up to that's legal.