Vacri already said enough about import duties. No US state can or does impose duties.
US citizenship (as defined by the federal level) is a necessary condition for Texan citizenship. Texas can't grant any political rights to "Texan citizens" who are not US citizens.
Federal structure: Take a look at Germany or any other federal nation. Germany consists of 16 states that joined a union (that is known as Germany) and voluntarily ratified the constitution (well, enough of them ratified it and a one went along for the ride). The states are individual entities that have their own laws, police, and so on. Starting to see the similarities? Politically speaking, no US state is as sovereign as Germany. Not in theory and certainly not in practice. However, the single German states have a certain level of sovereignty just like US states have a certain level of sovereignty. It's not an absolute but a spectrum.
"Most folks here" are unaware of what you posted not because they don't know but because it's simply not true. Maybe you should do some research outside Wikipedia. Well, you can even start there: https://en.wikipedia.org/wiki/Federated_state I know that many people (including political scholars) in the US hold the view that the states are individual entities similar to entire nation states. Note that this view is shared by almost nobody outside the US.
Oh, and please don't respond to comments by editing your original post by the way. I could also spread out the university degrees of me and my conversation partners here but that does not change anything about facts. It's just a bad argument.
US citizenship (as defined by the federal level) is a necessary condition for Texan citizenship. Texas can't grant any political rights to "Texan citizens" who are not US citizens.
Federal structure: Take a look at Germany or any other federal nation. Germany consists of 16 states that joined a union (that is known as Germany) and voluntarily ratified the constitution (well, enough of them ratified it and a one went along for the ride). The states are individual entities that have their own laws, police, and so on. Starting to see the similarities? Politically speaking, no US state is as sovereign as Germany. Not in theory and certainly not in practice. However, the single German states have a certain level of sovereignty just like US states have a certain level of sovereignty. It's not an absolute but a spectrum.
"Most folks here" are unaware of what you posted not because they don't know but because it's simply not true. Maybe you should do some research outside Wikipedia. Well, you can even start there: https://en.wikipedia.org/wiki/Federated_state I know that many people (including political scholars) in the US hold the view that the states are individual entities similar to entire nation states. Note that this view is shared by almost nobody outside the US.
Oh, and please don't respond to comments by editing your original post by the way. I could also spread out the university degrees of me and my conversation partners here but that does not change anything about facts. It's just a bad argument.