Probably because Chrome was built not to assume enormous amounts of RAM.
Maybe we should introduce sone kind of certification for developers of publically available software?
Or point out the climate issues: the way you do this multiplied with the number of users who use it means x tons of CO2 released pr years in addition to annoying tye users.
To add insult to injury it also means your users will have to replace their hardware more frequently than otherwise necessary.
I'm only partially joking here.
Im so tired of machines that should be 500 - 1000 times more powerful or more than my old PC from the nineties still being slow, and I blame it mostly on antivirus (on Windows) as well as various web technologies that are misused (on all platforms).