
Your friends should be able to confide in you about an insecurity without you making it a competition or belittling their feelings by saying "well mine is worse." also to piggy back off #3 and #4, you learn in introductory psychology that how we view ourselves isn't always reflective of how we view others. So responding to your friends insecurity as "well how do you view me?" is ineffective, as we judge ourselves harder than others.
I see your POV,but confiding in your friends is normal. Immediately thinking about yourself while someone confides in you is a lack of social awareness (because you're only thinking about yourself). Ig you are to react like #3 and 4 you'd be dismissing your friend completely while openly making their situation about you.
Idk I think I just feel bad when another "safe space" for women is revealed to not be a safe space. Like there are restrictions on what you can feel safe to say around your friend (obviously they'd trust you if they're voicing an insecurity) just for that friend to dismiss the whole topic to only concern themselves. Idk if I'm wording this right. Sorry if it's confusing