If you doubt me, simply go read votes from the past 20 years, and compare it with say 1960-1980. Republicans do not cross the aisle anymore.
The interesting part is that at some point republicans had so propagandized their voters against the very concept of governance that "Elect me to office for the next 6 years and I promise nothing will get done" was a decades long strategy that worked! The more republicans obstructed, including preventing republican voters from getting things they claim to want, the more republicans got voted in. For decades now, republicans that compromise with democrats have been primaried by less collaborative republicans.
Imagine a judge getting elected for insisting they will never hear another case!
None of this should be controversial, republican politicians have literally stated this as their goal and promise.