No, I think when existing justices get a sniff of a President attempting to pack a court with stringent ideologues whether Scalia-ish or Brennan-ish, the moderates tend to lean in the other direction, those not on the political edges (solidly right or solidly left) tend to lean toward the center, and all become more aware especially of any attempt to upset the balance among the three branches, particularly when it emanates from the Executive (see USA vs Nixon -- unanimous opinion against Nixon, and he appointed three of those justices, including the Chief Justice, who write the opinion, albeit with help from others because he wasn't very good at writing opinions). Both Jeff Toobin's and Bob Woodward's books on the USSC as well as other writers point to this dynamic over many courts.
It's like trying to balance nine people in a boat without tipping it over -- it may change direction as various members lean and veer one way or the other, but it won't capsize.
Granted we've never seen anything like this unhinged anal pustule in the Presidency before, so I won't discount the concern, and obviously he's been successful in appointing some inane Federal justices.