• If these protesters were libertarian, the slogan "hands off" would make more sense. These would be people wanting government to do as little as possible. But even then, much of what Trump is doing is cutting back government, making it smaller, more like the libertarian ideas. The tariffs are an exception to that, but you get my point. His hands are ON many government programs for the purpose of ending them or cutting them back. The protesters want to preserve big government.
• I think the tariffs are a means to an end of eliminating the tariffs against us. If that's what's really going on then the tariffs are not an exception and could be characterized as getting government out of free trade.
• Trump has been making big moves that have won cooperation from his antagonists. I'm thinking of the universities and law firms that backed down when confronted with financial loss.
• He has good reason to think that huge moves are needed or people will just resist and drag it out and wait it out. He needs shock and awe. The response "hands off" seems weak. Who will "hands off" convince? How did that slogan emerge?