There is no need to concede a thing. The Speaker will kill the clock. This will depress turnout. There is recent history here. I am glad you did not do a thing to actually counter these two facts.
So there will be zero test into whether any Republican will change his or her views. Short of actual hearings, we will not know. Suffice to say, Republicans did after hearings in 1973. We will never know.
But we will test the very real theory of suppressing the vote of precisely the voting block Democrats need to keep the House, retake the WH and reduce the Senate Majority. I am not delusional enough to believe they can retake it.