The money from tariffs would replace revenue from taxation. In theory.
Deductions are for anyone who wants to look for them and use them. Find out what's available and use them. Someone who goes to an office relatively close to home won't have deductions tied to their job unless they're required to wear specific clothes, use specific items, etc. If someone works in construction or other job that requires tools that aren't provided by the employer, clothing/safety gear and travel to job sites has plenty of deductions in the tax code. That includes insurance for the tools because losing tools/tool theft is far too common to risk that.
If you want deductions, start a small business on the side.
If various countries are imposing new tariffs (including Canada & China, on each other), it would seem that the WTO has work to do. Also, when one country has a billion workers, a history of trade & monetary manipulation and almost no adherence to intellectual property rights, problems are bound to occur.
From the link, "Canada has a quota system for imports, and above a certain volume, it imposes high dairy tariffs ranging from 201.5 percent to 313.5 percent. Before those quotas are met, dairy products enter Canada duty-free or subject to much lower rates."
'Our Tariffs are in response to his of 270% on dairy'
checkyourfact.com