Why would a country that owns most of your debt and much of your real estate and depends on you for much of their food sources attempt to go to war with you?.........LOL!
I am afraid you are, uh, significantly in error. As of now, the federal debt is about $26.73 trillion. As of December 2019 - the most recent date for which I could find figures quickly - China owns $1.08 trillion in US federal debt, or about 4%. By any measure, that is not "most of your debt". Given China's status as a creditor nation, as opposed to ours as a debtor nation, I doubt they would care about writing off a trillion dollars in US debt if it meant taking Taiwan. The domestic propaganda victory, combined with Taiwan's immense economic value, is worth far more than that.
In addition, China does not buy that much food from us. As of 2017, they were buying about $18.1 billion in food products from the US - less than it buys from Brazil (about $22 billion). They sell us about a third of that - $6 billion or so. China consumes 420 million metric tons of grain per year as of 2018, 95% of which it produces domestically, so again, it is wildly inaccurate to state that they "depend on [us] for much of their food sources". Indeed, war with the United States wouldn't have much of an impact, if any, on their domestic food supply.
tl;dr You are, in fact, completely wrong.
“war with the United States wouldn’t have much of an impact, if any, on their domestic food supply.”
That would depend on what kind of war it is.
Didn’t china just recently lose a significant amount of agricultural production capability due to a dam failure?