There is a context in the original tweet.
Trump had repetitively used the term "Chinese Virus" since the pandemic. Quoting the Conversation[1]
> The expressions “Chinese virus” and “Wuhan virus” personify the threat...The adjective “Chinese” is particularly problematic as it associates the infection with an ethnicity. Talking about group identities withan explicitly medical language is a recognized process of Othering (here and here), historically used in anti-immigrant rhetoric and policy, including toward Chinese immigrants in North America. This type of language stokes anxiety, resentment, fear and disgust toward people associated with that group.
In this particular tweet, Trump used the term "China Virus" instead of "Chinese Virus". Following the development of the recent events, it is very clear that such a term still ties to people of an ethnicity, or people of a location, instead of, say, just a location. The dismiss of the comparison is weak.
> So what? I'm gonna guess he wanted to amplify the photo of a mask-wearing Trump, not the China Virus.
Even if pg's intend was just to amplify the photo of a mask-wearing Trump, the fact that he liked and retweed a message inciting hatred is beyond disappointing.
[1] https://theconversation.com/donald-trumps-chinese-virus-the-...
edited: add link