Also, I'm not from the US.
But alas, I know how these conversations play out so rest assured that I shall no longer correct you.
Simply living passively requires fossil fuels for most people. Actively patronizing these countries is an intentional act.
(1) Filing up at the tank so you can get to your shitty job and feed your family -- i.e. an activity that is essentially non-optional; and
(2) Going on a vacation more than halfway around the world -- an activity which is definitely quite optional
?
Yet still, even ignoring this, I consciously make an effort to not support these countries because of the reasons I listed. The same way, I make a conscious effort to not support companies that use business practices that I don't condone.
Does this work 100% of the time? No. But that doesn't make me a hypocrite either. Everyone should do "whatever they can" to express their moral ideals.
You won't believe (you probably will, actually) how quickly Western people there adapt to "the way things are" in those countries. They promptly get a maid for themselves, do the passport thing "just in case", abuse them physically and sexually, etc.
Funny thing is how most of these people would identify as liberal back in their home countries. They casually talk about women rights and abortion and whatnot on their living rooms while their maid is sleeping in a dark basement with no ventilation a few meters from them. It's nauseating.
I lived in Saudi for four years and have experienced this first hand. Contrary to what you'd expect, Saudi nationals are generally more measured with regards to these things. Anglos and Europeans, "first-world" people in general ... they just lose it, it's like a fetishistic thing. It probably is an actual fetish for them as many of them do rape their maids and/or ask for sexual favors from them.
inb4: "Oh, those are bold accusations where is your hard evidence, show me statistics and high-definition videos of all those maids that you claim are being raped daily. I just did a Google search and found nothing, you must be lying. Blah, blah, blah."