With Collins and Murky, I think it's to protect their sinecures from angry leftist tools. Since Flake is out in January, his motivation is to give Trump the finger.
I don't mean just the fake so called 'Republicans' on the committee. I'm referring to Republicans in general. The idea that Trey Gowdy would support this ridiculous nonsense is stunning. He is supposed to be an attorney and he is supposed to be Republican, and yet he puts out a statement which says in summation, 'I don't care if Kavanaugh gets approved or not. Doesn't matter to me.' And he is just one of several so called Republicans to put weight behind this absurd fantasy. Again, I don't know why they are doing this. Unless maybe they are trying to throw off any suspicion of themselves?