JFC, some of these responses here about people with children “should” do this or that. This is precisely why Reddit and most social media is cancer and people filled with 0 social and life skills.
Parents shouldn’t have to do anything. If you have an issue with a crying child, the onus is on you to find another space for yourself to make yourself comfortable instead of mandating what other people should/should not do.
Does that mean that parents should let their kids run around? Hell no. But this also means that you stop acting like another baby and find a way to adjust just like everyone else incl other parents.