I think this might have been given thoughtfully and with good intentions. ("I'll give him a bonsai tree; it'll a way to get a quick, low-stakes win every day.") But it clearly missed the mark. That's just the way gift-giving goes sometimes.*
I'd thank him and either try the bonsai tree for a few days or dispose of it. Just don't keep it around for a long time out of a sense of obligation. The goal of giving a gift is to make the recipient happy, so if it doesn't make you happy, ditch it!
* and why gift-giving is incredibly stressful ahahahaha I hate it so much
It's difficult for me to articulate a thought about this because it has obliterated a large percentage of my neurons BUT I think what takes it from bad to "I hate this and the world that produced it" is the "TRUMP IS USING HITLER'S LANGUAGE" bit as if the people who made it thought "Hey we can use this as actual outreach to reinforce Biden's messaging" because why else would you put that in there, it's not a well known phrase or anything resembling even the most generously-defined contours of an attempt at humor