Because for the moment it is the only means of defeating the Socialist Democrats and the hard core that will follow them.
Feinstein sat on this for months and without any regard at all to whether it is true or not presents it when it will do the most harm. The record shows the accuser is a Dem political activist who, if she wanted her story heard, should not have sat on it for decades and then sent it anonymously. That she did makes her story appear as a convenient fabrication.
If you don't vote R you/we will just get more of this uncivil, even treacherous behavior from our government.
And what will you get if you do?