You inherited it by birth. It's more of an issue of, under international law, a country cannot make someone stateless. Everyone is entitled to a community and a place to live. When you're a brand new person, we need to establish where that place is. If you want to change it, it's on you to change it.

You can just shout "I DECLARE STATELESSNESS" as youre boarding the plane/boat/train

I mean technically you don't have to. If you don't ever plan to come back to the US and the country you are going to doesn't really care about US law you can just go and entirely ignore the fact your a US citizen for the rest of your life. Just don't go somewhere the IRS can try to extradite you from.

Don't give em any ideas

You gotta pay for it too

Because nation states are all about the nation state, not the people imprisoned within them.

so you expect babies to be born stateless? do you think that would work out well for everyone?

Not even sure which place you're taking about or why you have to renounce citizenship.