“Intellectual property” is not a valid form of property. It is only valuable because the State “justice” system gives it value. All you get from owning “intellectual property” is the opportunity to sue someone, or a defense if someone else sues you.
“Intellectual property” is owned by the inventor. In practice, most of it winds up owned by large corporations. You have to sell your “intellectual property” to a corporation and get anything published (although the Internet changes that somewhat). Even when individuals do control their IP until they die, their heirs typically sell it to a large corporation. Getting a patent approved is expensive, and a patent lawsuit is even more expensive; most patents are owned by large corporations. Most “intellectual property” laws are corporate welfare for the insiders who own most of the ideas.
Physical property is subject to property taxes. You must pay a % of the value each year, or lose it.
Why is there no “property tax” on intellectual property? Patents expire after 34 years, limiting the abuse. With retroactive copyright extension, copyrights effectively last forever now. Trademarks also last forever.
That also would solve the “orphan works” problem. If nobody paid to re-renew the copyright, then you know it’s public domain and free to use. Currently, if you can’t find who owns the copyright, it’s still illegal to copy it, even for old-but-still-copyrighted works.
If someone owns “intellectual property”, they should be forced to pay a % of the value every year or lose it, just like with physical property. The older the copyright or trademark, the greater the % tax should be.
There is no “property tax” for intellectual property. That is more evidence that “intellectual property” primarily exists for the benefit of insiders. It is hypocritical that people say “Intellectual property should be treated like physical property!”, without simultaneously arguing for an intellectual property tax.