which is correct?

To have American parents is correct.

Sorry, I can't do x an y.

To have American parents is the correct sentence.

1) Correct - not only X went there but also Y
Because:
The second variants' semantic construction suggest that in the first half of the sentence (not only went there X) X not only did one action (went) but also did some more actions. But the second part of the sentence (but also Y) makes no sense because it indicates on a person rather than action.

Don't know how to put it more clearly.