That's only assembled in the US. The important components such as the SoC aren't made in the US.

There isn't, but I didn't state that there was. What I will say is that a Pixel phone is much less likely to have a Chinese backdoor due to less exposure to to Chinese facilities throughout the supply chain (The modem chip for instance is Samsung, not Qualcomm. Primarily South Korean/US made rather than Chinese, though not entirely).