Oh, so then the same principles apply when a Republican does it?
Such as when Speaker of the House Newt Gingrich visited Taiwan in 1997?
"In Mr. Gingrich’s case, his Taiwan visit was combined with a trip to
mainland China. Chinese leaders initially objected to the Taiwan stop
but eventually tolerated it after Mr. Gingrich threatened to otherwise skip
Beijing on his itinerary, he said in a recent interview with Voice of America.
Mr. Gingrich said Beijing had one precondition for him—that he wouldn’t fly
directly to Taiwan from the Chinese mainland. After he wrapped up meetings
in Beijing and Shanghai, including with senior Chinese leaders, Mr. Gingrich
flew to Tokyo and then to Taipei.
In recent days, Mr. Gingrich has said Mrs. Pelosi should proceed with her plans
to visit Taiwan. In response, Chinese Foreign Ministry spokesman Zhao Lijian
last week condemned Mr. Gingrich’s record on Taiwan-related affairs, citing the
former House speaker as an example of “how some U.S. politicians would stoke
tensions in China-U.S. relations, turmoil across the Taiwan Strait and instability
in the world only to benefit themselves.”
The Chinese diplomat’s comments suggest that Beijing’s response to a visit by
Mrs. Pelosi would be different from Mr. Gingrich’s 25 years ago. Ambassador Zhang
blamed unnamed “external forces” for changing the situation around Taiwan for the
worse. Without prompt containment measures against them, he said, the situation
risked getting out of control. He said a Taiwan visit by Mrs. Pelosi would be “dangerous
and provocative,” and would undermine China-U.S. relations."
<
https://www.wsj.com/livecoverage/nancy-pelosi-taiwan-visit-china-us-tensions/card/china-tolerated-a-visit-to-taiwan-25-years-ago-it-now-sees-that-as-a-mistake--VNK7ekOOP0Coch9JrB03>
FWIW, diplomacy with China has been a pretty delicate thing for decades; one can
look back to the UK's departure from Hong Kong and what's transpired there since
for some examples. Overall, the question with China and Taiwan is essentially a
chess game where China needs to decide if they want to risk an escalation to actual
military conquest, as is being influenced by today's Russia-Ukraine conflict, as well as
other factors which basically revolve around optimization of the rate of change in
respective military capabilities, of the same general flavor for what motivated Russia
into their 'now or never' invasion of Ukraine.
-hh