Again, your history is faulty.
Reagan nominated Bork. The Democrat Senate rejected him. Reagan nominated Ginsburg, who was forced to withdraw. He then turned to Kennedy, who was confirmable.
Because the Senate was Democrat, and because of the Borking, Bush 41 nominated Souter, the "stealth" candidate with no record, who everyone at the time, including the liberals, thought was a conservative. Because he had nothing to attack, he was confirmable.
You do understand that Presidents cannot appoint SCOTUS Justices without a Senate vote? Because of that they have to nominate confirmable candidates.
Reagan's first choice was Bork, not Kennedy. Because the Senate went Democrat in 1986, he didn't get him. Because Bork didn't get on the Court, we didn't get a conservative majority and instead of overturning Roe the Court reaffirmed Roe in the Casey case.
It has taken 20 years to get a second chance at a conservative majority on SCOTUS. If the Republican-bashers persuade the base to stay home this fall, the Senate will again go Democrat and we will not get another nominee like Roberts or Alito, because Presidents have to play the hand they are dealt.
The history I cited was and is correct. You want to add a whole bunch of other stuff so you can make excuses for politicians, by all means have at it. It means nothing to anyone but you.
Despite all the nonsense you pretend I said, but I never did, two Republican Presidents nominated and supported two liberal judges. They were either stupid, or didn't have the guts to look the liberals in the eyes and escalate the battle. A lot of apologists claim the SCOTUS seats are the most important thing a conservative President can do, yet it isn't important enough to fight to the bitter end.
Alternately, the Republicans aren't very conservative. Like the current guy. He is what he is, but he never claimed to be conservative. A good thing since he is not.
BTW, the jury is still out on the two he just put in. (pun intended) Not to mention the one HE ACTUALLY wanted, who was certainly not conservative.
The fact is, electing Republicans doesn't necessarily lead to conservative judges.
I hope that was slow enough for you.
WELL SAID!!
That attitude reminds me of this verse.
What shall it profit a man if he gains the whole world and loses his own soul?
Matthew 16:26