Zeffi is discussing:

Imagine if people would learn from this. Evil isn't going to stop at the line YOU draw. If you let it out, it'll keep on without you.

It didn't stop with women's suffrage.

It didn't stop with gay rights.

It didn't stop with removing any reference to God and morality from education and the media.

It won't stop. It never stops. It's a runaway train, and we're all stuck on it.