It sounds like you don't agree.
Coffee production by itself is already mired in geopolitics.
And as a customer, where we spend our money matters. It’s often the only voice we have.
Take a look at Black Rifle Coffee Company. Their brand attracts a certain type of customer. It’s a market differentiator.
so, it's not really well-defined to ask whether or not a coffee shop "should" be taking sides, it will take one in all situations. it is a (slightly) more tractable question to ask "how should a coffee shop take a side?" Given how difficult this question is to answer still, I like to answer it with, "doing good is generally aligned with the long-term profit-motive."
this is also why boycotts are actually useful! though collective action, you can align the profit-motive with "good" clearly. this makes it easier for a coffee shop to move in-line.