That has literally been their policy since Mao. This is not news.

How will China convince all those Taiwanese people to vote for unification?

The PRC has always maintained that Taiwan is part of China and will be eventually incorporated back into PRC. (The ROC had the same position, but with respect to the mainland until 1991.) Taiwan was in fact part of China from 1683 until the Japanese started their imperial colonization of China and Korea, taking Taiwan in 1895. It would be news and a really big deal if the PRC stopped making that claim.

My pet theory is that this was said specifically to destabilize the US. As others have said, this is not new. China has been saying this for a long time. But 100% the GOP is going to call Biden weak for not shutting Xi down and instead saying the US supports a "One China Policy " without any critical thought as to what the dynamics are.

This is to fire up the right wing base.

So that means Taiwan will become whole again?

At this point Taiwan has been independent for a good long time so it’s probably time to recognize that. This comes down to what the people in Taiwan want. I’m guessing they are good with the current situation as it keeps tensions down but sooner or later they are going to have to make a hard choice and the US needs to back them on it. Either they vote for reunification (unlikely but you never know) or they unequivocally identify as not-China and completely independent. In the second case the US and world should be prepared to back Taiwan. What will actually happen? Well, if I were Taiwan, I wouldn’t want to piss of a neighbor like that who is likely to go psycho when you officially breakup. It’s like ripping off a bandaid. I would be terrified of what China will do no matter who is baking me up. Taiwan will have to make a choice sooner or later but I completely understand their hesitation.

Let's make West Taiwan happen

The only way the current strategy of both sides changes is if a major factor changes, otherwise this cold standoff is the most stable place for both sides on the matter.

It could be that an election in Taiwan is won by a very pro-China party - a similar thing led to rapid changes in Hong Kong. Or an American leader changes tactics dramatically because theres no longer an incentive to support Taiwan.

Taiwan needs to be careful to guard against either situation happening.

Differing from many superpowers that came before the US, the US has a reputation of following through on what it says it will do long term, and the vast geopolitical diplomatic reach of the Americans means that for now, China would experience too high an economic cost to try and change this balance unilaterally.

....after US gets their chip manufacturing off the island.

When the US can make their own chips, they won't be risking defending Taiwan.

How nice. So Taiwan leader can rule over all China. We don't need China anymore. So generous of Xi.

What was Biden's response? I'm too lazy/apathetic/ADHD to read the article.

China's very own Cato. Ceterum censeo...

The US won't allow it given how much industry there is of strategic importance to the US.