It's not that this divestment is significant. It's not, and I doubt if it was even politically motivated. TIAA-CREF was taking flak for a holding they didn't even have any more, and they merely pointed that out. However, if people jump all over TIAA-CREF for it, other financial players will take note. Just don't invest in Israel in the first place. Then no one can give you flak for selling your holdings.
Pope: Let's stop crimes like deaths of migrants in trucks (AP)
from the article: U.S. pension fund giant confirms divestment from Israel firm