You cloture the person
And that essentially isn’t an option at times due to how difficult it is to reach the 60 vote threshold, which means nothing gets done, which means congress is basically useless.
Or you just wait them out. You do nothing until they relent.
Politics sometimes has to be ugly. What you don’t do is make sad excuses as to why things don’t get done. You just shut things down till they go for a vote.
You can’t wait out an indefinite filibuster. And it gets to become indefinite because they don’t actually need to talk at all.
They’ll get pressure from their party to stop it. At some point they’ll need to move to other business. It’s a battle of the nerves. Politicians have lost the guts to play chicken.