Trump is definitely a hebephile. I don't think there's any doubt on that point. Hillary supporters have been screaming that he's a "pedophile" (mixing the two up) for months. I still see comments about him being a pedophile in various news sites' comments.

Yeah, there was that pizzagate myth on the other side, but not a shred of evidence. Bill Clinton flew on the Lolita Express to Epstein's underage sex slave island numerous times, but the Hillary/Podesta/Pizza thing was a whole lot of nothing and confirmation bias. Trump, meanwhile, is on record saying all kinds of sexual things about underage girls, even his own daughter and her friends when she was younger, openly and notoriously. Nobody really cares because he's an alpha male, and alpha males don't get questioned on their sexuality.

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As for trade, you're right that the US economy is too big to ignore, but more to the point, there is now a US President that hasn't been working in government his whole life. Governments don't know anything about money because they've never had to earn any. They think they can just print more when they run out, and it's not their money anyway because they just take it from others with force of arms. Trump has had his ups and downs in business, like any entrepreneur, and has a far greater understanding of negotiation and the economy than any previous presidents.

Will Trump make only good decisions, and will everything he does be good for the economy? Of course not. I'm sure there will be a mix of good deals and bad. What you can't doubt is his intentions, and his ego, when it comes to putting America first. He wants to prove he can manage things better than anyone else, his brand (and Trump cares a lot about brands) is MAGA, so he'll put the time and energy and thought into every single deal his administration makes. You ever hear of a US President wading into the nitty-gritty details of government contracts? Well Trump has already been doing that. He's going to go item by item on every single foreign trade deal he makes, and every deal currently in effect, and he's going to demand Americans get their money's worth. I can't see how that level of care and attention can possibly result in anything but a net gain.

Let's also not disregard the impact of aggressive and dominant language from a leader. We had Obama, with his international apology tour, weak moral relativism, and backtracking on "red lines". The result was other governments thinking Obama was a joke, walking all over the US, and a world descending into chaos. Now Trump comes along with his bombastic, animated and aggressive attitude, and foreign governments are sitting up and listening. I read a lot of foreign press, and the world is fucking terrified of Trump, and what's more, they think he's going to do exactly what he's said he will. In other words, the world is taking Trump seriously. In negotiation, the most important thing there is is being taken seriously. Even if on a certain level, they know Trump's statements are just an initial bargaining position, and he can be negotiated down from certain stances, the fact is they know Trump won't hesitate to carry out his threats and that Trump's supporters will only reward him for it.

It's one thing to be a 800-pound gorilla, as the US most definitely is. It's another to be an 800-pound gorilla that knows it's an 800-pound gorilla, and fed up with all the shit-flinging little monkeys. The gorilla doesn't have to throw its weight around, it just has to let the others know it's willing to, to get its own way. The EU is too busy collapsing under its own failed economic and immigration policies to bother anyone for the next few decades. China's not insane enough to have a trade war with the US, they're too dependent on the relationship. Japan is too dependent on US protection from an increasingly aggressive China and North Korea, so when they see Trump follow through on expanding the US Navy fleet they'll be happy to compromise on trade. UK wants a US-UK trade deal so badly post-Brexit that they'll do anything. India and Brazil are too small to really threaten the US. Canada wants to get the pipelines open from their oil sands and have already said they're eager to renegotiate parts of NAFTA. All Trump has to do is cut off financial aid and money transfers from illegal aliens in the US to get Mexico in line.