This is definitely incorrect.

51% majority controls ALL the blocks if they want to.  They can
re-org the blockchain any time they want and undo any recent blocks
they want.

Bitcoin is not resistant to state control. In the past china tried to hold the control of bitcoin, but it didn't come to reality . I believe few of the corporates that function along with bitcoin holds the control.

If nothing else, I hope the controversy with bitcoin opens peoples eyes to how far people will go to control things like governments, banks, economies and financial systems.

It might be important for things like banks and governments to be decentralized to make them resistant to control.

The same way one might say bitcoin being decentralized, makes it more difficult to manipulate by those with hidden agendas.

Now I'm not so sure that bitcoin is resistant to state control. If some government decide to take control over bitcoin they may spend lots of funds on hashing power and take over bitcoin.

+1. This. Thank you @Hydrogen. There will be many campaigns of paid hacks who'd try to develop fear and saying we 'must change Bitcoin because it is broken/flawed' - Bitcoin is working beautifully beyond most our dreams and has become the ultimate source for store of value/investment for all of us to have financial freedom because it is decentralized, permissionless, and has a 1mb blocksize limit (which fights consolidation/centralization) so when mining operations get shut down, me or you can get our computers running to continue mining.

Keep up the integrity of the Bitcoin network for the years to come.

You are wrong and since you mention the recent blocks i think you understand why.
You need to have a valid blockchain. So if you want to change the 3rd most recent block, then you can not simply change this block. You will need to change the blocks build upon this block as well. Since they need to be valid you will have to mine them. The difficulty will remain the same but it will take you longer then the average 10 min. In the same time the original chain will be adding to its height. Therefore you can not chain it at any time. You can do it if you outperform the original chain, which will happen but also cause many orphaned blocks. People will not like that.

That one aspect of bitcoin we can always count on. It is decentralized so no central government can ever control it. That is why etf was denied, they cannot control bitcoin.