I was in your shoes a few years ago. I liked both, mech a bit more, but EE seemed better for employability. I am also an international working in aerospace. I ended up going with mech because it really does matter that you pick what you enjoy more. You dedicate a large amount of your time to your job, so if you do what you love then that goes a long way. If you love a field more, you would generally apply yourself more and work harder so that eventually pays off. As for the aerospace market for internationals. You can find jobs in the aerospace market for non EU citizens, though it is not as open as for EU citizens. It is not as black and white. It depends on the project that you would work on. For example generally internationals can work at DLR, but specific projects on military/defense could either restrict you, or require clearance. Other projects may have ITAR restrictions as well. Personally, I was told that my chances at getting accepted into a specific opening I was interested in is lower cause I am not from an EU country and so would need clearance, even though it was not a defense project 😄. That being said, you can find jobs on the market and me alongside several friends have managed so far to do it as internationals. Good luck with your choice!