Bitcoin’s main problem in its associations with the black market and rejection by the majority
for today, it is definitely not the main problem.
On the second point, who do you mean by most? If the majority of countries, then yes I agree that so far it has not been accepted by most governments. If you are talking about most people, then this is also not critical, because gradually more and more people are interested in bitcoin.
The most important question: which associations are you talking about? BTC has not been associated with the black market for a long time and occupies a leading position in the crypto market.