Still, there is a “difference between opposing a policy, and the tactics to which one resorts in opposing it. However abhorrent China's one-child policy may be, it would not be persecution for China to have jailed the petitioner had she assaulted the family-planning officers ... when they forced an entrance to her cousin's house.” Li v. Holder, 612 F.3d 603, 606 (7th Cir.2010) (citations omitted); see also Gao v. Holder, 429 Fed.Appx. 64 (2d Cir.2011) (per curiam). In the United States, and we imagine in virtually all other countries, it is a crime to resist an arrest violently even if it is an unlawful arrest; for there are legal remedies against false arrest.
We have previously found that a party can waive a waiver argument by failing to raise it. See, e.g., Qiu Ping Li v. Holder, 612 F.3d 603, 604 (7th Cir.2010); United States v. Moore, 563 F.3d 583, 585 (7th Cir.2009). Nevertheless, we have also recognized that the waiver doctrine is “designed for our own protection as much as that of an opposing party, and therefore need not be asserted by a party for us to invoke it.”