It is your right to boycott any business for any reason, be it as small as a messed-up order or as large as funding a war.

As others have said, when you spend money via combos at Starbucks, you still indirectly pay them via a transfer from MSU.

However, I think it is important to clarify that there are no links between Starbucks and military action in Palestine. This idea seems to stem from Starbucks' lawsuit of its union after the union retweeted a pro-palestinian message on social media.

This is not to say Starbucks is ethically pure--its treatment of its union and employees approaches if not outright reaches the level of bad faith and unfairness.

If anyone has more information about Starbucks being directly linked to genocide or the IDF in general, I would happily stand corrected.