Your physical safety is up to you, as it really always has been.
Your mind-set is your primary weapon
It is true that a victim who fights back may suffer for it, but one who does not almost certainly will suffer for it.
A fine marksman is with a second rate rifle is far more effective than the reverse.
What you do to prevent further felonious assault, as long as the felon is still capable of action, is justified.
What are we going to do if citizens are disarmed, and the government doesn't obey its own laws?