Come on man, read the room.
To be fair though whenever China and US seems to be discussing things in private as with this Kissinger trip the Europeans get really nervous, so I can under of understand why Borrell want to come so badly.
Borrell is all of Kissinger's evil with none of Kissinger's intelligence.
As I see it, Kissinger is a massive pragmatist and nationalist. His goal is always to strengthen America, but he also knows which fights are smart to pick and which aren't.
The current young (Biden's puppetmasters, not Biden himself) and jingoistic US leadership wants to hedge all of America's future prospects on a succesful invasion of Taiwan. So they're creating the public consent that "Taiwan has always been a part of America", similar to how Russia began to publicly undermine and question Ukrainian national existence after 2014.
If you care about American national power, that is a very stupid move.
America has the world's largest military, dominant global reserve currency and 2nd largest economy. You really want to bet all of that on your ability to D-day into a Chinese island right next to the mainland that is basically the most heavily defended area in the world? The only war theater in the world where hypersonic anti ship missiles will get thrown at you like tomahawks get thrown at third world countries?
What pragmatists in Washington realize is that US can still fight on, without betting it all on a disfavorable WW3.
In fact, anywhere except inside China and it's defense bubble, I'd bet on US militarily any day.
Despite that, the young nationalist US regime is so obsessed over preparations to annex Taiwan that they're losing the Middle East to China, even through US should by all means be more powerful there.
US has plenty of resources and fighting power, gambling it all will prove their national undoing into India level status, rather than continued cold war or a soft and dignified landing. The likes of Kissinger will spin in their graves for it.