We see what happens when a House of Congress has a significant hold on the majority. And we see it when the part line is at its strongest; we get the US House of Representatives. A powerful and respected body to be sure, but one that moves so fast and with such little input by the minority it can be dizzying.
If the partisanship is bad enough and/or the majority strong enough, the minority, in some cases, may not even need bother show up.
So we have the filibuster. To calm the rushing tide of the majority. To protect the nation from the tyranny of the majority. To that end, it has served it’s purpose for a long long time.
But the time may have come to change the rules.