I generally agree with this, and it's probably why the strategy with Cuba changed under Obama. The idea of the sanctions leading to a revolution has had decades to discredit itself.I don't think it serves American financial interests to be locked out of Cuba's economy. It's not like the embargo generates some sort of economic activity like a arms race would somewhat cause in the military industrial sector.
And while history has shown the imperialist structures fought to control Cuba economically, I don't think anyone actually sees the embargo as something that would eventually restore it these days.
If the embargo was lifted, realistically aside from Cuba benefiting, the economic activity it would generate for American financial interests absolutely outweighs this very faint scenario where the U.S puppets Cuba again.
Although I do think the possibility of a successful socialist state is still seen as a threat to American capital, especially with increased levels of dissent in America and the growing acceptance of socialism among young people.
But I wasn't talking about the embargo with that post. I was saying that if the US were to in any way involve themselves with some sort of Cuban opposition, they would do so in the way that best benefited American financial interests with little regard for the well being of Cubans.