The Daily Beast has a good common-sense article today: Celebs threatening Trump doesn't help. The writer is a long-time critic of Trump and the Trump campaign, but even so is dismayed by the post-election liberal "freak out". As he correctly points out, if Democrats hope to someday recapture the White House and a significant number of state legislatures, and actually have some political power again, they will need to win back a lot of Trump voters, and what they are doing now isn't the way to go about it.
If Hillary had won and Trump supporters had threatened to burn down the White House and smashed windows in Washington during her inauguration, one can imagine the outrage the largely liberal press would have expressed. Funny how mute they are when the situation is reversed.