I imagine Dejacque would still consider that a restriction on freedom, especially the profit part, but that's not really the part I'm critical of.
There's the idea that "great artists steal", which is basically a reference to the fact that all creative endeavors are iterative. Thomas Edison didn't invent the lightbulb, his team just took earlier designs and made them marketable. This isn't to downplay their accomplishments, it's just how invention works.
Intellectual property laws can create barriers to this process. A great example of this are the recent lawsuits against various musicians for writing songs that resemble previous songs. As a musician, these lawsuits are really frightening because music is especially based on copying. A great example of this is the famous "four chords" that make up a wild percentage of modern pop music. 90% of music pretty much boils down to dressing up the V-I chord progression. Bach is just cycling this in different keys, so is most jazz, the four chord progression is just the V-I with two extra chords, and so on. The extremely common chord progressions can't be copyrighted, so in a sense the logical progression of this is a ban on all music that isn't so cliche'd no one can claim it. This is nothing to say of sampling or remixes or covers that probably make up most of commercial music nowadays.
It gets even worse. There are firms called "patent trolls" that come up with bogus inventions explicitly with the purpose of taking people to court if they end up actually trying to produce it. The majority of patent lawsuits today are filed by entities that don't make any products.