So what, no different than some foreign car dealer here in the U.S. you'd buy from in a split second if you thought the price was right, as you've already admitted supporting American businesses is the last thing on your priority list. "All things being equal" is the only time you'd even consider it, so there's really no need for you to go on trying to explain your position, although you probably feel like you need to since your character has been shown to be about an inch tall so far.
Most of Slack development takes place in the U.S.
The parts may be foreign, but the car is assembled in the U.S.
So then by that analogy, you don't drive GM, Ford, or DaimlerChrysler--as the parts for those cars are made in various places.
So, how do you get around? By foot?
I believe we've been over this before. For example, the Ford Mustang, a bunch of Chevys and GMs (is yours one of those?) don't really even qualify as Made in America. By pretty much any metric but the brand name, the "foreign" Toyota Camry is more American than those cars.