Different addictions are, d'uh, different. Yes, comparing drug addiction to gambling addiction as if they should or could be addressed in the same ways is a, IMO, obvious fallacy, just like it would be trying to manage, say, a porn addiction the same as someone addicted to alcohol.
And the biggest problem with legalization is that the American capitalist approach today is, as it is too many things in our lives, "well, this is technically legal so all bets (pun intended?) are horsefeathers off, LET'S GOOOOOOOOOOOOOOOOOOOOO!!!" Drug legalization in America has been, IMO, essentially a catastrophe. There are practically zero safety nets in place, and the wildly varying nature from state to state makes doing so nearly impossible.
And that's ultimately the problem with all of this horsefeathers; we don't consistently regulate any of it sensibly on a national level AND provide the necessary social systems to help minimize the inherent, unavoidable damage. Your bitcoin bros analogy? Those guys only get to thrive because we haven't done horsefeathers to regulate crypto or the internet.
So the reality is you already won. The worst that's going to happen gambling or completely insignificant inconveniences like the provision you complained about at the beginning of this. Gambling as a readily accessible, normalized part of our lives and nobody is going to ever put that back into the bottle.