1) Never called it a partisan divide. In fact, I'd argue I'd be more supportive of tariffs that were based on finished products rather than raw materials. I don't like Steel and Aluminum tariffs as they penalize the producers of good jobs who use those materials to create other items. I'd be a stronger supporter of finished goods (like Washing Machines & such) where the importation directly competes and eliminates good US jobs.
3) How many US jobs were shipped to Mexico by the auto industry 3 weeks after NAFTA was signed? You can't tell me that NAFTA didn't directly screw US workers out of GOOD jobs. As for being harmed by international tariffs, I say we have been. If it weren't for European tariffs, how many more Fords would there be in France? How many Chevy's would we sell in Germany. How many solid middle-class jobs are eliminated due to these international tariffs. Those countries institute tariffs to protect their own crappy manufacturers who are subject to absurd government regulations and taxes (beyond what even ours are) so as to protect its workers. Yet when we look at doing similar, WE are starting a trade war. But to answer your statement, yes, American's are impacted by foreign tariffs.
4) Automation is not equal to tariffs, although I have real concerns on automation as well. For one, automation allows for real gains in productivity. Also, automation creates alternate jobs in parallel to those it replaces, tariffs don't, whether that's robotics repair, computer service, programmers, etc...
