Pssst- Hes already done that with tobacco/smokers- who are forced to quit because they cant afford it any longer.
True enough but smoking cigarettes is not specifically constitutionally protected as gun ownership is. Therein lies the significant difference when government attempts to tax and regulate a protected right to the point of making it unusable as opposed to something - smoking - that may not be illegal but is not protected by the U.S. constitution, giving government more opportunities to eliminate it's widespread use.
Incidentally, while the federal tax on cigarettes stands at a unconscionable 1.01 per pack (and Obama was it to go to almost $2.00) the states collect the lions share of taxes. Some are quite reasonable (a mere 17¢ per pack in Missouri) while some are ridiculous ($3.50 per pack in Rhode Island). Glad I quit smoking decades ago!
near $10 a pack in most of New England