It's a complete misreading of the situation; the US is in fact actively undermining Taiwan's national security, both 1) by coercing Taiwan to transfer its technology and human capital and 2) by banning chip trade between Taiwan and China.
Yep, but Taiwan was always a sacrificial lamb to contain China's economic rise. Unfortunately, I don't think a lot of Taiwanese people realize that. I feel sorry for them because in any military conflict, they will feel the most pain, by far.