We'll have to equip our satellites with anti-missile technology. Not necessarily. There are a lot of ways to deal with ASAT activity, ranging from "overpopulating" with satellites, maneuvering targeted satellites, stealth, or creating a rapid replacement capability.
The more difficult part is actually defining a realistic threat environment. It's difficult to come up with countermeasures of you don't have that.
I believe it the first strike against unrestricted surveillance of a country. Who said that every country should have unrestricted access of the space above a country. We often get mad when another country show the slightest bit of military capability. China from time to time going to have success and failures on its road to military parity. We as America just want to rule all battle spaces unchecked. China is still along ways from this parity, so stop being chicken little America and causing the very arms race you are trying to prevent.