1) Going back to the 1800s is routine in the legal world to understand what is accepted practice in our system. After all, the relevant rules haven’t changed since 1789. Aren’t examples from people who created this system particularly relevant to understanding how it’s supposed to work?
2) The SCOTUSblog article goes through the exact same examples as the National Review article for the 20th century. The only difference is that the National Review article looks at whether different parties control the Presidency/Senate. What is “propaganda” about that? The Senate and Presidency are political branches that are supposed to be at odds, potentially. Is there any reason to assert that this political rivalry shouldn’t extend to Supreme Court appointments? Is it “propaganda” to even posit the idea?
Moreover, stopping a vote entirely? That's unprecedented. Had there been a vote on Garland, he almost certainly would have been appointed. Many of the moderate Republicans in the senate, facing elections, would not have been able to justify voting him down to their constituents.
For the National Review to leave those pieces out is dishonest. I'm also not just referring to that article. The National Review has been dishonest propaganda for a while, making dishonest arguments that manipulate the facts (usually by omission or careful selections as here, but occasionally outright lying) to justify the actions of what has become a fascist party.
https://www.mediamatters.org/national-review/national-review...
> In a 1986 New York Times op-ed (3/18/86), Buckley urged that ‘everyone detected with AIDS should be tattooed in the upper forearm, to protect common-needle users, and on the buttocks, to prevent the victimization of other homosexuals.”
https://www.scotusblog.com/2016/02/supreme-court-vacancies-i...