Carbon taxes are just fuel taxes. Running (tap) water is a service, which people pay for.
Firearm confiscation ought to be seen for what it is - a "broken window". To the extent compensation falls below market value (prior to any correction in markets for the fact that the commodity is being outlawed), it is basically wealth destruction. I try to suppose that only stupid people destroy wealth, but there it is. At the margins, some people undoubtedly would sell off collections to finance retirement or other consumption. To the extent they can't do that, their consumption is reduced, which reduces velocity of money, which reduces (ultimately) government revenues. Again at the margins, some people will fall to income levels at which they are wholly dependent on government-funded retirement and other support, which (ultimately) increases government expenses.
A lot of small wheels are coming off the government bus just now. Whether the people in charge are smart enough to recognize the risk of the sum of all these things being dangerous and avoidable, is disputable. But it is self-correcting, without any need for anyone to aggravate public disorder.