One can run false advertisements, hire mercenaries to attack your factories, dump below-price goods on the market (and jack up prices once you're out-of-business), sign exclusive anti-competitive deals with your suppliers, vandalize your employee's homes so none want to work for you, and so on.
No one would argue that any of those are ethical, but none of those are theft.
Confusing words like this is a standard tactic, but it's not conducive to having reasoned discourse.
It's also not conducive to attack a straw man. You put a lot of words in my mouth. I said we shouldn't impose Western IP regimes on other nations. You somehow changed this to music piracy in the west. There's no logical connection there either.
As a footnote, on the topic of piracy in the west: when I was in college, there was a lot of copyright infringement. None of those kids had money to buy what they were pirating. A couple of decades later, no one I knew from college infringes on copyrights. The lost profits were zero. Indeed, in some cases, people bought software they pirated in college because by that point, they were used to it. It's in discussing scenarios like that when the analogy to theft breaks down. The tools for addressing it are different. As a matter of policy, it makes the most sense to target places where there is the most capacity for losing profit. One example of an IP regime which I thought was clever -- from an Eastern European country shortly after the fall of communism -- only criminalized copyright infringement for non-minors. If I child wanted to copy a $5000 CAD program or a $200 IDE to learn to use it, it was legal. Copyright enforcement started once kids hit 17 (and was enforced). The West forced the country to shut down that "loophole," but it seemed like a reasonable policy to me.