Earlier quoted context omitted.
The US was not in any significant danger of being directly invaded during WWII. It would have been an incredibly costly logistical nightmare for the would-be invaders, very unlikely to succeed. US worries were legitimate (atrocities perpetrated against civilians, future control of Europe/Asia, the international economic order and security of global trade networks, etc.) but “urgent” invasion wasn’t one of them.
Pearl Harbor was US. The Philippines was US. We were literally invaded. They also bombed the West Coast.
You are right that the Philippines was invaded, and was at the time a US territory. But it was at that point under a government intended to transition it to independence. See https://en.wikipedia.org/wiki/Hare–Hawes–Cutting_Act
From what I can tell (this was decades before my birth and I have not extensively studied it, so I probably have an oversimplified impression) for mainland Americans, the Philippines was not really considered to be part of the country in the same way as, say, Illinois or Texas, and Filipinos were not considered to be Americans in the same way. (e.g. after WWII the Congress voted to strip benefits from Filipino veterans https://en.wikipedia.org/wiki/Rescission_Act_of_1946) I’m sure the US wanted to maintain some navy and trade presence there though.
The Japanese also occupied the Aleutian islands of Kiska and Attu (part of Alaska territory). But it’s hard to imagine that people 3000 miles away in, say, Oregon were worried that the Japanese would be imminently launching an amphibious assault from there.