Other countries have solved this issue simply by automatically forcing an election if a budget is not passed. Their representative are somehow able to overcome ideological differences and pass legislation once their jobs are on the line.
When a civil rights law sunsets, lots of bad can happen in a short period of time.
I’m using the example of the government unable to agree on a budget as an analogy.
What happens when we can’t agree on how to renew the Civil Rights Act and it sunsets for a period of time?
A mandatory sunset provision can only work if the legislators act with the interests of their country and constituents first and their individual pockets second, which isn't the case any more in many Western democracies. The US are just the most obvious example where Republicans blocked everything Obama tried to pass through.