For those not paying attention, this race has already been settled and is still part of the 47 Senate seats that most major media report Democrats hold. The only seat that is technically not settled yet is in PA, where the Republican is ahead, but couldn’t clear the .5% margin needed to avoid a mandatory recount.
But it is extremely unlikely that a recount would find enough votes that weren’t counted in the first place to matter, and most media counts that seat as Republican now, leading to the final 53-47 count. Chuck has even invited the Republican to things for new Senators, even though his victory is still not technically final.
There is another point, at least for Americans. While I know a few people who have emigrated to the US and still maintain ties with their original homeland, I know others who have intentionally given up their privileges back home. While they may still be citizens of their home country, they owe them no obligations.
The US is different, they tax your income no matter where in the world you make it. if you are living in a country with a tax treaty in the US, you can fully deduct all foreign tax payments so you will likely end up owing nothing to the US. But you still have to file. And in return for that you retain the right to vote from the state you last resided in. Furthermore, it is quite hard to give up your US citizenship. It can be very costly, because we will make you pay taxes on assets as if you sold them before they let you leave, including any retirement funds.
Americans living abroad are much more likely to still consider themselves Americans first, because we remind them about it every April 15th.