[BJones12]

The rational choice would then be to move their economic activity and the jobs involved to another country with lower taxes.

[luckylion]

That would already be the rational choice, if it was. There are countries with lower taxes, yet the economic activity isn't flocking to them.

[jfengel]

If they think that they can be as economically productive in a different country without American citizenship, then they should indeed do that.

[missedthecue]

Do you think that punitively incentivizing the most economically productive people to leave the country results in zero consequences?

[thfuran]

The US taxes non-resident citizens.

[erikerikson]

And citizens can abandon their citizenship if they feel it is worth it.