4.Bitcoin is used for illicit activity.
This has been in the front of criticism of bitcoin by most people especially those in government which is one reason they give for not adopting bitcoin into their constitution a a means of payment just as fiat. This though has not stopped the use of bitcoin by large majority, the use of bitcoin has increased from it early stage.
And when the government rejects bitcoin, it only makes bitcoin more popular and reliable for crypto users to make profit during today's pandemic. I agree with you. today many people believe in bitcoin. Crypto users are always alive, although bitcoin almost made me doubt when within 2 years bitcoin was stable and it was difficult to reach the moon.