Incorrect.
While admittedly the language is rather convoluted by modern standards, it is not incomprehensible. There is no textual support for your claim that Paul is speaking of isolated acts as opposed to general rule.
If by use of the term "orientation" you mean to incorporate the modern understanding into the Pauline discourse, you should understand the two are mutually exclusive and can not be reconciled.
Of course they are. You make my point for me.
Scripture does not speak to homosexual orientation, since Paul could not make the distinction.
The Catholic Church makes the distinction, and rightly so.