And I'm pointing out that responsibility and blame are not the same things and that conflating the terms leads to positions that are hard to defend. A person may be responsible for their own actions but not to blame for someone else's.
You're changing the target of the actions mid sentence. Said person is responsible for their own actions _and_ to blame for their own actions. They are not responsible for someone else's actions nor to blame for someone else's actions.
If a person knowingly takes actions that put them at greater risk, then they are to blame for putting themselves at greater risk.