Am I an ivy material?

I’m an international student in my junior year right now. I have a non profit that organizes workshops that aim at breaking societal stereotypes through storytelling and panel discussions. I’ve been a part of a few MUN’s, some international conferences, my student council and have done some college level courses in the field of social sciences. But my grades have been pretty bad for the past two years (Grades were like D/E). Am I an ivy league material? Considering how atleast my EC’s have always leaned towards social science and humanities?

Based on what you have posted, no. Among the many things going against you:

M<ost Ivy League schools have single digit acceptance rates; the acceptance rates for international students are about half that. Most international applicants will have grades far higher than yours. While all Ivy League schools practice holistic admissions, make no mistake, extraordinary ECs will not cause admissions to overlook poor grades.

D/E call into question whether you are college material at this point in your maturity? Most kids with those sort of grades either go vocational school or community college.