Yes, Christians should make a positive case for belief in God. Not sure why your meme has someone yelling something dumb. Looks like a strawman argument poorly articulated.
And, atheists should make a case for what they believe. Are you claiming to know there is no God or are you agnostic?
It definitely takes a cheap shot at religious people with the yelling 😅
I tend to agree with Leonard Peikoff on agnostic vs. atheism. I really don’t care though. It is implied that if there is evidence of something I once thought of as impossible I would change my mind. Being an atheist to me is saying that based on all the facts of the universe I know, I have no reason to believe in god.
http://aynrandlexicon.com/lexicon/agnosticism.html