as you say bitcoin is like that but the government also must have developments and learn bitcoin especially how the blockchain function itself .. easily the government can trace the above through the transaction history of blockchain users. and surely they need an exchange to make cryptocurrency a fiat currency, from where the government can find out who owns the account. KYC function

We can't blame those nations who banned bitcoin in their country because if you were on their foot, you're going to do the same thing. In order to make bitcoin legalized or allowed nationwide, those cancers who uses bitcoin in illegal transactions must be eliminated because I think they are the main reason why other governments were afraid. If those people were eliminated, Bitcoin world will be very healthy. I know that the government know that bitcoin gives people a good life, they're just against it because of the threats of illegal activities.

government don't want to kill bitcoin, they want to kill the terrorist and all criminals int heir country, but they see that bitcoin is the most payment method that they use, so they want to kill bitcoin to makes the criminals stop their action, and maybe some people is not agree with this decision that block and kill bitcoin

Because it is out of their control -> is a threat for them.
However, I like how some people are talking about crypto being dangerous: criminals are laundering their money, terrorists are purchasing weapons with the help of BTC and so on...

I think governments try to kill bitcoin mostly because they can not control it and for sure this freaks them out. It is not an advantage for them to not having bitcoin paying taxes to them

Is there any problem to do the same thing with regular cash? I don't think so.
If killing the Bitcoin will solve all these problems, I am ready to pull the trigger myself. Where is my gun?

Aside from those illegal acts by lawless elements, the governments also want their own currency to only dominate the market so that they can fully control everything from us most especially all our centralized assets. Good thing about centralized assets is that they are pretty stable though lacks in privacy and security unlike Bitcoin wherein we can evade tax on every online transaction me made.

Those "reasons" have nothing to do with why Legal entities would want to ban crypto (cash/fiat is overwhelmingly used for those purposes). They want to ban or de-legitimatize bitcoin and other true open-decentralized currencies, precisely because they have no control over the population who uses them correctly.

But this is just part of their misunderstanding and denial. The legal babylonian deception will continue to control those who do not take their privacy/security seriously. As you can see now, centralized organisations/exchanges are requiring KYC/AML regulatory practices... these are the enemy of freedom as they allow the CRIMINALS (Legal Banker Governmental) to attach their fraudulent jurisdiction to crypto users.

The truth is, if you know what you are doing, they have absolutely no jurisidiction or authority.. and they cannot stop the innovation. If you are interested in not sacrificing your freedom over the next few years, you will want to become very accustomed to atomic-swaps and true Decentralized Exchanges Privacy solutions. The centralized companies are LEGAL entities, and therefore cannot be trusted.

actually the core of the problem is not legalized bitcoin for this transaction is not tax burden on every bitcoin transactions that occur so that government revenue will decrease and this will impact on the country development. But an idea appears to solve this problem: the government can issue its own digital currency, with all these transactions taxable and avoid the use of illegal bitcoin such as money laundering, terrorism, etc. because all transactions can be tracked.

Because Bitcoin is considered to be threatening their country's currency and considers Bitcoin to be used for money laundering. But not all governments do. For example, the Japanese state that has legalized Bitcoin as currency.