A substantial percentage of the users and creators of OSS today are young enough to have never known a world that didn't rely on OSS. In other words, it's very easy to take this remarkable product of open collaboration for granted.
In 2019, 33% of the software in the WhiteSource data set relied on copyleft licenses while 67% of the software favored a permissive open-source license, three percentage points more than in 2018. Rewind to 2012 and copyleft licenses could be found with 59% of projects while permissive licenses accompanied just 41%.
Note: I couldn't find a better version of the barely readable graph embedded in the latter article, so I quickly redid it with copyleft in blue and permissive in yellow -- numbers only, sorry...