I think you've completely missed the important facts. Scientology is still a religion in Germany, but they don't qualify to be state recognized religious organization because they don't do anything to benefit he community. You can be believe Jimmy Buffet is your only ticket to paradise, but he's not gonna get a tax break unless he tells you to give back to the community. Likewise, you can call whatever you want "a company" but it's not going to be a company--and entitled to the benefits therein--unless it gets a business license. You can call yourself a cop all you want, but unless you pass the requirements to become a LEO, you're not a cop. That's the difference. Meanwhile, the other major religions you listed are all giving back to the community in great numbers. So they do qualify to be a state approved religion. So this is an entirely apples to oranges, reasonable contrast between major religions and Scientology. If Scientology wants to get tax breaks all they have to do (GASP) is start giving a shit about people and trying to help them. If that burden is too high for you to become a religion, I don't think I want you anywhere near a legislative job.
Jimmy Buffett can give you a cheeseburger after you get there, but Eddie Money is the only one with the tickets (only two, though...)
In Nature there are neither rewards nor punishments, there are consequences. -- R.G. Ingersoll