Yes, intellectual property rights ARE inalienable rights. Just because the precondition for intellectual property was not fulfilled until a few centuries ago doesn't mean that it isn't inalienable. Inalienable doesn't mean "has existed and will exist forever." When that is said let me add that I think that the IP laws of the US (like many of their other laws) are not good. I can explain what kind of IP laws I think should be practiced, if you like, but that is really irrelevant to this discussion. Before we get into the nitty gritty details of formulating good IP laws we should be able to get past the most significant bit: should or shouldn't ANY IP be protected by law at all? The reason I mention US laws here is to make sure you understand that I am not saying that just because I think that IP is an inalienable right, then all US IP laws are just.
Those rights are meaningless to anti-IP entrepreneurs. We will culls business that use these "rights".
They are not "rights" in so much as they are disadvantage on the free market.