That isn't particularly relevant,
You haven't given any reason why it wouldn't be relevant.
Just proclaiming it is not relevant doesn't make it so.
That makes you guilty of the logical fallacy of "argument by assertion". Merely asserting something doesn't prove it's true just because you assert it is.
but even if there was one who made me, her definitions do not equate to my obligations
First off, it's "He", not "her", when talking of the Bible.
God is called "father" in the Bible by Jesus, not "mother".
Second: You're committing a strawman fallacy by trying to redefine what I said in different terms.
I never used the word "obligations".
That has a completely different set of connotations and conclusions attached to it.
I talked in terms of "design" - which is inescapable.
If your car is not designed to put salt in the gas tank, then to do so will have bad consequences.
If you are not designed to engage in certain sexual behavior then don't be surprised if there are bad consequences for doing it.
Why is the consequence of sin death in the Bible? Because you cannot be in union with God if your nature is different from His.
And to not be in union with God is to be cut off from your source of life.
"Obligation" falsely implies that you need to do something to earn favor to be granted something from God. The reason that word is false is because it implies that God could grant you union with Him without you letting go of your sin first. The Bible tells us that would be impossible. You are therefore literally incapable of avoiding death without coming back into union with God (which requires being without sin).
A better analogy would be comparing it to a law of nature, like gravity. If you do this then that happens. You just can't get away from it because that's how things function.
You can define it however you want.
It's not my definition of immorality. It's the Bible's definition of immorality.
Your definitions don't oblige me either.
If the Bible's definition is true, and I believe it is, then your rejection of the Biblical definition has no bearing on the fact that you are still bound by it's truth.
That would be like thinking you can become immune from the law of gravity by deciding you don't believe Sir Isaac Newton ever existed.
If the Bible is correct then you are bound by God's definition of what is right or wrong regardless of whether or not you want to believe it. And you bear the consequences for violating that just the same.
Logical fallacy, "argument by assertion".
Merely claiming what I said is not consistent with the Bible doesn't make it so just because you assert it.
You would not be able to give a single reason or piece of evidence to dispute what I said about the Bible's definition of immorality and sin.
I am going to skip the rest of the sermon.
You're the one who asked why it's immoral - and so I gave you an answer.
Are you afraid of what you might find in that answer?
I can't see why else you wouldn't read it, considering you're the one who asked for it.