The only reason these fights are life and death is because the left has so hyper politicized the supreme court. Have you ever heard a judge other than RBG publicly criticize a sitting president? Did any of the conservative judges say a damn word when Obama circumvented the congress with executive orders?
What Trump said is perfectly reasonable - Obama did not have the senate - Trump does. He is president for 4 years, not three - RBG even said this in an interview. And to further quote people, Obama once famously said elections have consequences.
The problem is the left just does not like it when things dont go their way and then they throw temper tantrums and call everyone extreme partisans for simply following the process set forth in the Constitution, If the right really wanted to they could take the nominee from committee straight to a vote - avoid all the useless crap of the hearings - you know they wont be productive, they wont be civilized, and they wont change anyone's vote. That would take away the grandstanding and character assination. If the nominee is ACB then maybe have the hearings and let the left's anti catholic bias shine through.
And now the left is threatening to pack the court? Come on, RBG had the chance to retire under Obama, and she declined. Harry Ried changed the voting requirements to benefit the dems. The left has no one to blame but themselves for this, if and when they confirm a new Justice.