When you find yourself fretting over the safety of someone you encounter on a bike, ask yourself, "am I part of what's making them unsafe?"
If you* are behind a steering wheel, the answer is probably yes.
* unless you are my amazing newish neighbor I've seen using your car to block for my kid, expertly creating an impromptu protected intersection so she can safely make an otherwise stressful left turn on her way home. You are awesome and I love you.