It's probably not only in Poland or it depends on the day of a week (weekend drivers etc ;).
Probably not only in Poland, but certainly not in the US.
I just took an 8000 km tour of 12 states and didn't have one solitary close encounter. No cutting in, no road rage, no tailgating. And no cops, either. Everybody going limit plus 5 at the most.
Love those United States of America and its president.