He really wants to destroy democracy.

That is irrelevant.

He describes destroying democracy in the second part of his CPAC speech.

Also irrelevant.

There are, by definition, two conditions to be met for his statement to be sarcastic.

1. Does he intend the statement to be ironic satirical? Yes he does, he is throwing a statement made about him back at the Democrats.
2. Does he intend the statement to slight a third party? Yes he does, he is saying the Democrats are the ones actually wanting to destroy democracy.

It is entirely possible for him to want to destroy democracy and still say it in a sarcastic way at the same time. Those two things are not mutually exclusive.

Plus, as we have established down-thread, you seem to agree that he doesn’t believe he wants to destroy democracy, because he has a twisted notion of what democracy means.

I don’t understand why that is so hard to grasp for people in this thread.

Edit: a word.