I'm surprised Maduro wasn't just killed, and wonder if he might somehow die in US custody. The US will have to make a case in court while the whole world watches. That will be embarrassing I expect.
They extradited him by force because Venezuela wouldn't. They don't have an extradition treaty. If Venezuela doesn't want this to happen again - negotiate a treaty.
The USA doesn't "accept" the ICC because it's not a party to the agreement. There are not-insignificant constitutional problems with the USA being a party. It's because they have such strong civil protections that those issues come up.
The ICC is also complementary - you misunderstand what it is for. If the USA is able to prosecute this guy themselves, you don't need an ICC, because it doesn't apply in this case.
Anyway, your whole comment is just word-sauce.