You cannot sue for what could have happened. Fortunately you were not injured.

Just like Walmart can ban you from their store, they can ban you from their site. No reason required.

Apparently not, according to them.................

Just like Walmart can ban you from their store, FB can ban you from their site. No reason required.

IMO no and no. At least not successfully....................

You seem to have an abnormal attraction to children that is likely to end up in you going to jail. Move on.

This isn't really a legal issue. Speak to your command. It is up to them whether to grant you leave.

It would actually be illegal to do so.

First you make a claim with FEDEX. Second you file a lawsuit in Small Claims Court.

Lying about the law is not slander. Sounds like both sides need to grow up. Just my opinion.