No, the Demonrats will never be able to stop Brett Kavanaugh. Lindsey Graham, in his amazing speech, pretty much exposed the Democrats for their baseless, hateful allegations against Kavanaugh and his family.
Since there is a good chunk of the Democratic Party base, the cultural left, that hates religion, particularly Christianity and Christian values in particular, it makes sense to see why they are so against Kavanaugh, a devout Roman Catholic and leader of his community.
Those asshats can suck it.