<He's a normal, upper-middle-class family man, a lycra-wearing cyclist...and he's stock-pilling weapons and ammunition. Against a Chinese state-sponsored attack, I assume.
Is there really nothing the Biden administration could have done or can do?>

1) Looks like your friends inability to think critically has landed him in the Fox News Doom Loop sad.

2) Congress had a pretty good bipartisan bill to address the border problem ready to go but Trump demanded they kill it so he could "blame Biden." (Maybe its working?)

Republicans whine endlessly about immigration policy while simultaneously tanking bipartisan legislation designed to deal with immigration.

Trump said, "the Senate is better off not making a deal, even if it means the country will close up for a while."

"The border is a very important issue for Donald Trump, and the fact that he would communicate to Republican senators and congresspeople that
he doesn’t want us to solve the border problem because he wants to blame Joe Biden for it is really appalling." ~Mitt Romney

Trumps open border is endangering Americans.