Regarding the trade war with China, no I'm not terribly concerned about it. The U.S. and China have been in a trade war for more than 20 years. The fact that Trump's admin is posing resistance to China, which is historically rare, may or may not be the right move in the long term. He has a group of advisors he's working with that have charted this path. We'll have to wait and see.
At the beginning of August, Trump threatened the tariffs that he's announcing today, after his delegation returned from meetings in Shanghai empty-handed. Giving subsidies to farmers in the meantime, isn't a problem if it's an interim strategy. Trump is pushing the sale of U.S. agricultural products in nearly every trade negotiation he makes, including China. China is extremely dependent upon exports and foreign investment to keep its economy moving. They've been over-leveraged for more than 10 years. Now they are taking a hit and have devalued their currency as a countermove. They're also taking economic and political pressure in Hong Kong. Lets see how they withstand it.
Bernie isn't a "long-shot" candidate. He's been top two or three in virtually every official poll this year, while Biden, as a front-runner, has been erratic. The DNC candidates in this election are weak, and the fact that Bernie is painting himself in a corner with outright socialism will all but take him out of the running. And for what it's worth, Elizabeth Warren is perceived to be just as far left as Bernie is. That's why Dems have started rallying for Biden, warts and all.
Trump is obnoxious and irritating, and he comes off childish at times, but he still has a strong base of support from conservatives and has the Republican party behind him. If the Dems can't find a compelling candidate, he's likely to win again.
Meanwhile, you're something like a liberal stooge who makes an average of 20+ political posts everyday on a message board for the Utah Jazz, repeating the same angry opinion over and over. You're the epitome of the angry Democrat, full of sour grapes, but with nothing to offer.