Ask HN: Do the younger generation lack professional standards?

Hey guys, there has been a situation in my team over the last few months which I'm unsure about. We have had several new hire React developers, who seem quite talented and capable at their job, but seem to lack professional standards. 3 members of my team have set their profile pictures on MS Teams to furry pictures, these pictures also show to calls with clients. To me this seems clearly inappropriate. While there is nothing explicitly inappropriate in the images, as I understand it, furries are a kind of sex thing.

I've tried to bring this up with management but have been told they don't see any issues and I should drop it. Am I overreacting here? Is this normal in a corporate environment? I get that with remote work, things have become more casual, but not too sure if this is too far.