Yes, but accepting someone being who they are doesn't mean that you approve of what they're doing or that you need to expose yourself to that person further. Just to use one example, if you have a loved one who's a substance abuser, a sane and healthy response is not to further immerse yourself in their addictive behavior in the name of some concept of acceptance. Accepting who someone is implies nothing about willingness to be around them, and that has nothing to do with blame.
Acceptance is also acknowledging it is not up to you to change or
help them change thier behavior.