I don't think the fight against a Supreme Court Justice is against its reputation.
Nor an attempt to tarnish the reputation of the President or the Republican party. They seem to understand how quickly voters forget, and don't care about ideals. The Democrats are still playing the game with the expectation that they can shame the GOP back into good behavior. They can't. And no matter how many principled stands the Democrats take, it cannot substitute for effective action.
I think it is literally attempting to block an appointment. ... And Trump has explicitly said this is to ensure that he will be able to challenge the election and win. Preventing that is really, really important. This isn't about persuading voters; this is about the act of governing the country.
Not only would the President be able to challenge the election, but possibly also would candidates for Congress. Assuming the basis for such a cause of action would be voter fraud, other candidates could argue that any results rejected by the Court as tainted by fraud would also apply to their elections. Except I think those challenges have to be made in state courts for Senate elections. And because this is the worst of all worlds, I have to remind us that the Federal Election Commission is presently without a quorum. This group normally oversees elections to federal office and insures election integrity. Now little prevents the GOP from doing exactly what it's almost assuredly going to accuse the Democrats of doing.
With the voter suppression permitted by the Supreme Court already, allowing this woman on the Supreme Court is just allowing it to be impossible to start from the bottom.
Voter suppression and gerrymandering have been essentially given the green light. These happen at the local level too. My state is gerrymandered to split up the liberal north-central valley, where a large part of the population is concentrated, into pie slices so that it can be diluted by rural conservative votes. That's for the House. It's further gerrymandered within the counties to divide up the local legislature in similar fashion. By strict population, the Utah legislature should skew just slightly to the right. But it's overwhelmingly Republican -- a supermajority every session, allowing them to downvote even the most drastic parliamentary maneuvers.
These actions are possible precisely because the U.S. Supreme Court has decided them, in practical terms, for all the states. No state can pass a law forbidding partisan gerrymandering.