Um. . . did you not watch Black Widow and Hawkeye? Yelena spent a good chunk of time trying to murder Hawkeye, the Contessa is the one who hired her out to do said murdering, and Red Guardian spent his entire career working as a Soviet spy including knowing collaboration with the Red Room. To say that they are not villainous in the slightest is to lie about their actions on screen. The best that could be said about any of them is that they aren't *always* villainous, perhaps having taken a redemptive turn at some point. And this doesn't apply to Val, literally every time she's appeared on screen she's been doing her best to come off as White Amanda Waller.