So first off, we can't have a reasonable conversation if you insist that criminalizing is identical to regulating. The vast majority of us who support the decriminalizing of drugs also support the resultant drug trade being highly regulated, just to use your example. And as a hint, when you have to go to those kind of contortions to support a position, it's generally time to reexamine that position.Those are actually just another consequence of regulation. The problem is that because regulation is the rule all over the world, these exchanges are the exception, which means there are relatively few of them, which means low competition between them. That has the same result: poor services at high prices. Worse yet, it gives the illusion that regulation actually is beneficial and people become willing to accept regulation despite knowing that they hold competition back, are bribed by the already established exchanges and "only catch the small fish" as the guy in one of the posts above admited while defending regulation.
A good analogy is drug criminalization(regulation). By criminalizing(regulating) drugs, governments push the business of drugs to drug traficants and people that are usually not "of the best kind". Not only that, it makes it a lot more profitable for them.
If you're interested, here is a good 5 min video related to the subject:
It's also pretty absurd to say the hundreds of forex bucket shops are the exception and don't operate in a competitive landscape. First off, there are hundreds of them. Second, what exactly shields them from competing with one another?
Your original assertion was absurd, your support for it even more so. If you're losing money in the markets because of the fraction of a cent regulator fee you're either a HFT or a failed trader looking for someone to blame. Either way I wouldn't expect a lot of sympathy.

You don't know anything about me and when someone changes the focus of the discussion from the topic to the opponent, THAT is a clear sign of lack of arguments and impossibility of having a reasonable conversation.