Entrapment requires:
(1) a causal relationship between police action and the accused's commission of a crime, and
(2) the police overcoming some demonstrable resistance to the commission of that crime, or the accused otherwise demonstrating that the police somehow corrupted them into committing a crime they would not have been predisposed to commit otherwise.
The "entrapment myths" in the comic:
1. That the police have to tell you that they're cops, or are somehow not allowed to deceive you into committing a crime. (No).
2. That the police cannot ask you to commit a crime. (No).
3. That the police cannot break the law themselves to get themselves into a position to see you commit a crime. (No).
4. That the police cannot help you commit a crime. (No).
5. That the police cannot allow you to commit a crime or somehow give you the impression that your actions are lawful and then arrest you. (No).
The law expects you to actively resist an entreaty from anyone --- undercover cop, uniformed cop, friend, family member --- to knowingly break the law.
The example the comic gives of an unreasonable effort to break through resistance: appealing to a friend to aid in the commission of a crime because your life depends on it, putting the accused in a position where a reasonable ordinary person might choose to participate in the crime as the lesser of two evils. That's entrapment.
Furthermore, as I understand it, and this may be state-by-state, but entrapment is doubly difficult to employ in a defense because it's an affirmative defense: to raise "entrapment", you must first acknowledge that you committed the crime in all its particulars, and then claim that your excuse was that you were entrapped.