Bitcoin is now considered by the government as a property, not an income . This is the reason why they want to put taxes. I guess it is fair enough for those who earned hundreds of thousands here in the crypto world. But for those who are just starting to earn, the government should not. Still, I am in favor of the taxation. But the government should also consider the status of the bitcoin's market price.
In very few countries, the crypto currency is classified as property. In addition to the United States, I can not even say in a country that they did it. In Japan and Europe they recognize or are going to recognize the crypto currency as a means of payment. In South Korea and most other countries, crypto currency is recognized as a financial asset.
In some countries, taxation on the profit from a crypto-currency begins with a certain minimum amount to be taxed. Probably, it would be correct in this case.