Responsibility comes with power. Dr. Fauci is irresponsible, and can best serve the nation by resigning.
I disagree. I do not perceive a scientist who looks, talks, and acts like a scientist as being irresponsible.
You would not get significantly different answers, either in content or style, from any scientist. I would have done the same thing in his place.
He gave the best information that he (or anyone else) has.