The parent didn't actually say that.
They said that it should be up to them, as to whether they hire that person after a background check eg reveals something.
There are very obvious cases where it makes a lot of sense to screen people based on background checks (eg a daycare or school). Further to that point, every business operator is different and has different beliefs. One operator might be ok with hiring a previously convicted rapist. The next business owner might be a woman who was raped in the past and has a very different view on that for good reason.
