Meaning of the phrase "loaded topic"

Question

I have looked up all the meanings of "loaded" in dictionaries, but still confused what that means. Here is the context it was used in:

Racism is a loaded topic and issue.

Does that mean that racism is a topic that is difficult to talk about?

Answer 1

loaded is a colloquialism that means complicated and potentially divisive, something that causes emotion to run high. Use of the term could imply that the speaker considers the topic one to be avoided.

That's a loaded topic, let's not go there.