What do you see as "the media"? The media landscape is so fractured, everyone has their own "feed".
I have seen Dems constantly attacking Trump, if you haven't consider the news you consume may simply be different. There is not one mainstream to push anymore.
My main media is Reddit, Youtube, and a few other sites so I do in fact see some fight coming out of the D's. There should be much more given the severity of these various issues, but I see some hope. It is sad that legacy media has almost completely given up on reporting most of this stuff, though.
as for the "mainstream social media", I'm not sure how effective the instagrams, tiktoks, etc. are at delivering these messages. I know some congressmen on are on there. Perhaps not enough, though. Or perhaps they don't get how to reach their people.
I have seen Dems constantly attacking Trump, if you haven't consider the news you consume may simply be different. There is not one mainstream to push anymore.