No. Look what happened when Bush was president, and the democrats stalled the election of supreme court justices. The republicans control 53 senate seats, and can refuse to confirm any justice till they know the outcome of the presidential election. If Trump wins, they'll stall until he takes office. If Sanders or Clinton wins, then they will grudgingly confirm who Obama chooses with some limits.
Another key point: the Democrats didn't say going into the nomination that no matter who Bush nominates they will reject. They were prepared to debate and decide on the nomination based on the merits of the nominee, not a blanket statement saying "we will not agree to anything, ever" - which is how the GOP has behaved during the Obama administration.
