Until very recently the only member of Congress excused from not having moved to impeach Trump was Rep. Grijalva, because until someone swore her in there was nothing she could officially do. But for everyone else already sworn into this 119th Congress, there was no excuse. There is no excuse. The refusal to act, to even start to pound the drum on impeachment, is an abdication of their own declared duty to the nation and destructive in and of itself.
I’m not sure the oath of office requires impotent demands for legislative actions that are guaranteed to go nowhere. I think it’s pretty well understood that the Democrats are in favor of impeachment.
There are a whole lot of things that a whole lot of Democrats could or should be doing that aren’t being done, but this really isn’t one of them. In fact, it’s one of the weakest things they could be doing.