I don't think that is an equivalent comparison as the tariffs you described are targeting specific businesses where as the EU regulations the GP described affec

I don't think that is an equivalent comparison as the tariffs you described are targeting specific businesses where as the EU regulations the GP described affect anyone who do business in Europe - including European businesses. However I don't have any particular issue with such tariffs either. If America want to promote their own industries by artificially rising the cost of buying overseas goods and/or subsidising local industries then that is their own decision. However it should be noted that such tariffs often end up costing their economy more.