Huh?
Congress derives its authority from the constitution, at least in the U.S.
None of that is prescribed by the constitution.
It would help to be a bit clearer.
The Constitution specifies that the House and Senate make their own rules via a simple majority vote.
The Senate set a rule that they would require a vote to end (previously unlimited) debate and hold a vote on an issue. Originally, this required a two thirds majority, which was lowered to 60 votes later.
More recently, the Senate changed the rules again to only require a simple majority vote on some matters.
Nothing about the Filibuster rule was ever specified in the Constitution.
I do want to push back though a bit. The filibuster isn’t the only rule I was referring to, and the entirety of the constitutions specification of the rule making process is literally “Each House may determine the rules of its proceedings”. So when I say rule making broadly has nothing to do with the constitution, it’s because it quite literally doesn’t.
If you genuinely don't understand how congress came about and why their actions are accepted by the other branches of government, I would recommend doing some reading of history.
It must be the case that I simply haven’t read enough, simply because my understanding differs from yours. It can’t be possible that my points are a result of careful study over several years.
Speaking of careful study. I suggest that you go back and actually read what I wrote and address what I said. Please inform me where in the constitution there is a prescription for what the house and senate rules must be.
You keep talking about congressional authority. I will reiterate, that is completely tangential to my points.
Most users on HN would rather not encourage that kind of behaviour.
Now, do people claim that anti majoritarianism is good? Sure. Clearly there are people who benefit from this system. In addition, a lot of people do justify it who seemly don’t directly benefit economically, simply due to an ideological affinity.