Another name for Satanism is secular humanism
No, it really isn't. There aren't any satanist going around saying that they are secular humanist, nor are there any secular humanists with secret altars to satan. If you look at an elephant and call it a grasshopper it's still an elephant.
elevating humanity above God
Secular humanism doesn't recognize a god or gods, therefore you can't make that claim with any honesty. Not that honesty is a trait I expect to see in theists in general and christianity in particular. Not with all the lying for jesus.
Satan doesn't care if you elevate him above God, or yourself
You are right, he dosen't care, Mainly because he doesn't exist. Satan's nonexistence aside, you have not a shread of biblical evidence to back up that claim.
so long as you are not worshiping God.
So if I don't worship your bible "god" then default I must worship satan? So by your own reasoning the fact that you don't worship Zoroaster and Ahura Mazda means the you do worship Ahriman and Angra Mainyu, or that you don't worship Allah and Mohammed so therefore you do worship Iblis. You see? Worship doesn't work that way, worship is not passive, it requires active participation.