I see what you're saying, but I think that Republicans have eroded their credibility a bit as far as their ability to oppose a nomination, even if it's someone very far left. Even though their reasons for opposing the two nominees would be different, it's still somewhat a "crying wolf" situation and the public will have lost some patience with these Senators who already are viewed as untrustworthy.
That's why I think the Republicans have dug themselves a deep hole and also why I'm surprised the Democrats have not used this more to their advantage. Maybe you're right, it will show up more in the next couple weeks.