Accidently put dried red kidney beans in chili without soaking, What to do?
The issue isn’t so much the soak but the cooking.
You need to boil the beans for 10 minutes to inactivate the toxin in them.  Cooking at a lower temperature, such as with a slow cooker will not do this.

The problem here is that I don’t know how well the beans will cook if they’re not yet hydrated. You may need to cook them for a bit then bring it to a hard boil for 10 minutes