The verbs: aid and abet.

[likeke]

"We're not going to just aid and abet bad behavior"

Isn't this sentence repetitive because aid and abet has a close enough definition?

If so, then would "We're not going to just abet bad behavior" be a better sentence?

[Ouisch]

In legal terms, "abet" means that you were present during the commission of a crime.

For example, if you lent your car to someone who used it as a getaway vehicle for a bank robbery, you could be charged with "aiding" a crime. If, however, you sat behind the wheel of an idling vehicle while other folks were inside the bank robbing it, and drove when they climbed aboard with their loot, then you could be charged with "abetting."

So, in answer to your question, someone who "aids" bad behavior may do so unwittingly, while someone who "abets" it does it with full knowledge of the bad behavior.