Interesting that you describe Lindsey Graham, Nikki Haley, and John McCain as
not a strong conservative
They remind me of Murkowski from Alaska. She voted against Republican nominee for the Supreme Court, Kavanaugh, and for Democrat nominee Jackson. Tim Scott endorsed her. McConnell supported her in the general election against the Republican candidate. Maybe at some point a Republican judge will lack one vote to be confirmed and Murkowski will vote against him. Would people still then say that McConnell is good for judges?
Obama’s health care wasn’t repealed because John McCain voted against repealing it.
John McCain campaigned to repeal Obama’s health care when it couldn’t be repealed because Obama was President. After that, Republicans got majorities in the House and the Senate and Trump became President. The Senate couldn’t repeal Obama’s health care because they needed one more vote. John McCain voted against repealing it.
No, not if that happened as you describe. If that happens, people’s opinion of McConnell on judges would change.