How come they are not screaming and shouting about US interference in UK policy now?

Because we are not engaged in an election campaign as we were when Obama tried to influence the outcome.
Obama said that they would put us at the back of the queue for a trade deal if we did not do what he said.
Trump has said we would be at the front of the queue but now points out that the white paper version of Brexit would make a trade deal impossible. We needed to know that.