You tend to state a bit of extreme opinion in regards to GPA... I understand why someone should be better served with higher GPA and easier major, etc. But, choosing to major in something totally easy is risky in my opinion because what if that person doesn't ace LSATs - in which case that person won't get into a top law school despite a 4.0 gpa + would face a reduced chance of attaining good job prospects post-college.
If your logic stands universally, then all top-performing students who aspire to become lawyers shouldn't bother with going to any top schools at all and all go to 2nd tier state schools and just jack up their GPA with much ease.
I have seen numerous people with stellar GPAs, with mediocre LSATs, who got rejected from all top-tier law schools they applied to.
On the other hand, I have seen many people, with above avg. GPAs (3.5~) and strong LSATS (170~) who get into numerous top tier law schools. (But HYS would require both top GPA and top LSAT)
I get the impression that law school admissions is much more LSAT-centric than GPA. I know a kid from Princeton with 3.1 GPA, 172 LSAT who got into 4 of the top 14 law schools. But, I guarantee that you will never hear about a person with 3.8 GPA and 164 LSAT getting into top 10 law school. (almost never happens unless you are URM or something)
Thus, I don't think it is worth it that someone sacrifice his/her intellectual curiosity or potential non-legal career prospect in college just for the sake of majoring in creampuff major and rack up easy A's. (because the reward may not be great)