Governments are already trying to control too much in the financial sphere and this is the last thing they need, for them to get involved here too. As it usually happens, as soon as governments interfere somewhere for the sake of ensuring the well-being of people (protection from gambling), this will inevitably lead only to worsening conditions for ordinary gamblers, as well as some additional monetary fees, like taxes.
Are you saying that government intervention and regulation of gambling is unnecessary? That does not bring any benefit but even causes more trouble for gamblers?
As far as I know the government only taxes casinos because they are businesses, I don't think the government taxes gamblers. Especially the losers, how will they pay taxes when they have nothing left in their hands?
Also, are you sure that you won't need government protection if the casino scams you? Or worse, do you think that if casinos were not regulated, criminals would use them to launder money for illegal activities? Agreed that government regulation of casinos will have disadvantages but at least it has benefits that we should not deny.
People who gamble and invest in bitcoin do not want the government to control and tax them, but they always want the government to protect them if they get into trouble. is this fair?