My guess is that this is the moment where Tigra, anyway, really starts to question her former beliefs. Because, let's face it, having something bad happen to you or to someone you love generally is one of the strongest arguments. Like, 'I stuck with them through thick and thin - I compromised my morals for the cause, because I thought it was worth it, that the benefits were greater than the disadvantages - and now the system wants to dissect my baby? I've sacrificed so much for them already, and now they're hiring thugs and supervillains to run the system and dissect my baby? *&^% them, then! Captain America was right!' And that, I think, may actually be the core of the matter - Captain America was right. See, all of this has to do with fallout from 'Civil War', right? And in Civil War, there were two leaders - Iron Man for the Pro-Regs, and Captain America for the Antis. Now, during that storyline, Cap had a fair amount of followers from the get-go, and more came over to his side, because he's CAPTAIN AMERICA, dammit. Sure, he eventually surrendered, but it wasn't so much that he gave up his position on things - he was more like 'this battle is going to wreck my country, so I'll back down for the moment'. But then he died, and only one of the two leaders was left - Iron Man. This left the Anti side leaderless, and the only strong voice out there was Tony's. And it's stayed that way - even Osborn is now dubbing himself 'Iron Patriot', and wearing Tony's hand-me-downs that he wore for the Fourth of July parade. So with the only strong voices being those on the Pro-Reg side, naturally it becomes the officially prevailing opinion, and those heroes who don't want to be hunted down by the government, or who were on Tony's side anyway, tend to stay in line. Even those who are not wild about the current system aren't doing much about it, because who else do they join when the opposing side has just kinda broken up? (The Avengers are a rebel group of sorts, I suppose, but even they don't seem to be doing much directly against Osborn and Tony - they're just doing their thing and avoiding official forces.) However, there's a twist to this - Captain America is coming back. My guess is that, when he comes back and seen what a shambles the MU has become in his absence, he'll rally the Antis to his side again, along with some fresh recruits (presumably including Tigra), and we'll finally have this thing out properly once and for all.