I understand you're asking about domain valuation, but I should note that "Redskins" is widely recognized as a racial slur against Native Americans. Even the former NFL team that used this name changed it to the Washington Commanders in 2020 due to widespread criticism and pressure from sponsors, fans, and Native American advocacy groups.
A domain containing this term would likely face significant challenges in terms of branding and business development, as most reputable companies, advertisers, and platforms would be reluctant to associate with content using this terminology. Rather than having business value, such a domain could actually present liability and reputational risks.
If you're interested in sports-related domains or fan community websites, I'd be happy to discuss alternative approaches that don't involve potentially offensive terminology.