Fun fact. In America people are allowed to have different opinions. So you are free to believe that anywhere is a good place to vocalize opposition to abortion. And Kamala Harris is free to make a joke about being at the wrong rally.
What this doesn't change, however, is that Kamala Harris made a joke to a group of people heckling her. She was not being anti-Christian, or mocking anyone for saying "Jesus is Lord".
Me, personally, I'm against Israel's genocide of Palestinians in Gaza. And I so I'm taking this moment right here in this thread to voice that opinion. You, on the other hand, might say that this is off topic. Now if I went to a rally and was being disruptive and vocalizing my opposition to Israel's genocide of Palestinians, some people might not like that I'm being disruptive. Now I also happen to believe that this is a Christian moral issue: Christians have a moral obligation to be opposed to genocide, to be against the murder of children, to be against the murder of innocents, and opposed to the bombing of hospitals and churches.
Would it anti-Christian to crack a joke about my disruptive behavior? What if, as part of my disruptive behavior, I were to yell "Jesus is Lord"? Does adding "Jesus is Lord" make any response toward my behavior anti-Christian?
Now, I've said "Jesus is Lord", because Jesus is Lord. So I hope you won't say anything negative about what I've said or done here, because we wouldn't want you to be accused of being anti-Christian.
-CryptoLutheran