Not sure when you applied or your major saying you can get in with no F/L is not good advice.
Since Cornell is a school of interest, I just googled their hs requirements for the A&S college and foreign language is on there and they’re pretty explicit about it:
“3 units of one foreign language OR completion of at least the third level of a foreign language sequence (e.g., Spanish 3).”
*It is our strong preference that students complete 3 units of one foreign language during high school, however, students who have initiated a foreign language sequence before high school or who have heritage language skills that allow them to place directly into a higher level course will have met our minimum requirement by completing at least the third level of a foreign language sequence (e.g., Spanish 3)"
“exceptions to these requirements should be explained in a letter accompanying the application for admission”
Note the word requirement, twice. Also the UCs and CSUs here in CA require two years, only if the hs doesn’t offer any f/l can you get a waiver, and the only way they would make that a requirement is if most, maybe all, h/s in CA offer at least one.
“none of these schools has a requirement that you study a foreign language prior to applying”
Definitely not true, not sure why you’re perpetuating advice like this, I understand your point on not stressing out the OP with a third year of F/L. Anyway, the OP has two years but at this point the options are to take that third year somewhere as others have suggested or have the GC write a letter, which also has its own levels of stress, meaning adcoms are not keen on reading anything extra.