> the first filibuster was 11 years after the Constitution was ratified
Sure, whatever - your citation is "wikipedia.org/wiki/Filibuster_in_the_United States_Senate" and mine is "wikipedia.org/wiki/Filibuster#Senate". The exact details don't matter: the relevant points are that it's not a mechanism created by the Constitution, was not common in the lifetime of the Constitution's drafters, and has massively different effects on the governance of the country now than it did in the 20th century, much less the 19th or 18th.
A chart of filibuster usage over the past ~century speaks for itself: https://bit.ly/3mL6IOU
And that's not even fully up to date: the 2019-20 session ended with 298 cloture votes and the 2021-22 session with 289, per https://www.senate.gov/legislative/cloture/clotureCounts.htm .
> the first filibuster was 11 years after the Constitution was ratified
Sure, whatever - your citation is "wikipedia.org/wiki/Filibuster_in_the_United States_Senate" and mine is "wikipedia.org/wiki/Filibuster#Senate". The exact details don't matter: the relevant points are that it's not a mechanism created by the Constitution, was not common in the lifetime of the Constitution's drafters, and has massively different effects on the governance of the country now than it did in the 20th century, much less the 19th or 18th.