Is this a joke? There is this little thing called freedom of religion. You might of heard of it.
To the rest... the Church of Satan only defines LaVeyan Satanism. Most of us Satanists today do not subscribe to them and those who do not strictly so. LaVey always struck me as too much of an Ayn Rand and quasi-Nietzsche type.
Also, even if something is "personified as evil" doesn't make it illegal. That "definition" only fits the shoe of Christianity and (maybe? someone correct me if I'm wrong) Islam. In Judaism for example he isn't evil. Nor is he in Satanism.
As for the idea that Satanists do not worship "the God" yes many Satanists are atheists, but there are also theistic Satanists who do worship God... Satan to be precise. Although polytheism and pantheism tend to be more popular than any kind of monotheistic form of Satanism. It is very much a religion. I don't know what you mean by "the religion" but it is indeed a religion, deserving of all the same rights and privileges as other religions. At least for the United States, The Satanic Temple has demonstrated this time and time again with many legal victories. I know many people give them crap but I think most Satanists who are critical of them are a little jealous that they actually matter and have made an impact on the world. I consider them very skilled at lesser black magick on a scale unheard of before for Satanism. Plus if you look a bit' deeper they are just as Satanic for real if not more than LaVey was. It's their interpretation that is different is all.
I personally worship Satan. There are many forms and manifestations of Satan to me. One is what I sometimes call the "Meta-Satan" that is the primordial, nondual, total cosmic essence of opposition itself; the force that creates dualism to branch off from it's singular nature. One of my favorite things to do sometimes is just praise Satan or add my own little mantras or worship when listening to music. I sometimes use this as a guide to make my own music too, which I imbue with magical intention often.
One song I've been working on, funny enough, it's chorus/idea is based off of some horror mini-series anthology my mom and I watched. In one of them, Satan came to get his only human son and the mailman in one scene revealed he had followed the mom for ages as she ran from the truth, saying he had watched over them and kept them safe all these years. As she freaks out and runs off he uttered a line I thought was as hilariously as awesomely delivered in it's execution, he was rambling a tiny bit then said "Praise his darkness". I loved it so much it inspired a song I'm currently working on based around that phrase! (although said in a little less silly way)