I wouldn't bother trying to boycott Chinese goods, as suggested above. Many, many everyday goods, or their components, are made in China. Medicines, for instance. Are you going to boycott paracetamol and antibiotics?
Trump goes on about China and the "Chinese virus" in an attempt to distract from his own disastrous handling of the crisis. Maybe he should remember that the so-called Spanish Flu, which killed at least 10 million and maybe as many as 50 million, is believed to have begun in the USA. The American virus?
As for a low mood during lockdown... Personally, I have good days and bad, and I imagine most people do. I wish I could be like my DH and be able to occupy myself with something and shut out all intrusive thoughts. Don't know if the ability to compartmentalise is a male thing or if it's just him.