Once you've shamir-secret-split your multi-sig cold-storage private keys, laminated them, placed them in fireproof envelopes and dug them deep in the ground in 5 different continents... what exactly do you DO with your BTC?
> There's nothing preventing you from taking your BTC to some other exchange
I've already showed you that exchanges can freeze your assets, so yes they can prevent you from sending to other exchanges.
> some guy that accepts BTC for goods or services. That's the beauty of this whole decentralized thing.
If your marker for decentralization is currency adoption, then USD is the most decentralized.
I thought we were passed this whole "Bitcoin is not created by humans" meme...
Isn’t the point of Bitcoin not to have private transfers?
Your point is well taken, however it needs to be made clear: exchanges can only freeze those assets which you yourself have placed in their control.
If you have some time, rent mining power with BTC, and get freshly minted totally clean bitcoin in return.