[pvn]

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If nearly "all" drugs were legalized, what kind of effect would that have on our economy? It seems like it could have a crippling effect on some entertainment industries, such as bars, restaurants, clubs, and any industry that relies on alcohol sales.

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Let's go back in time....

If easy-to-use elevators and automated toll booths are lealized, what kind of effect would that have on our economy? It would have a crippling effect on elevator operators and toll-takers.

If the automobile is legalized, what kind of effect would that have on our economy? It would have a crippling effect on buggy whip makers, and blacksmiths, and barn builders.

Etc. You can think of your own examples. Radio displacing vaudville, live musicians (those exact arguments were used!); movies on TV destroying theaters (cf "Bridge on the River Kwai), on and on.

Why does any established business have any entitlement to legal protection for its postion from threats of competitors?

Hint: it doesnt!