That last sentence is a prime example of the downside of not holding others accountable for their own actions and behaviours.
It's a rescue tendency. Of course we are human and imperfect and each person has a way of behaving in their own individual way, at the same time we, as humans are accountable for our own actions.

Are you excusing behavior at the expense of your own limitations? At the expense of your own piece of mind? Are you losing other friends over it?

Maybe there isn't blame, per se, but there is choice and free will.