> The point of a 3/5th majority is to enforce compromising.

It's worth noting that the 3/5 requirement for most legislation is a recent development. Before around 2008 it was quite uncommon to require a filibuster-proof majority to pass legislation.

There's a count of the times this has come up on the senate's website: https://www.senate.gov/legislative/cloture/clotureCounts.htm