Blazor and React serve different purposes in web development. While Blazor leverages C# and .NET to enable server-side or client-side rendering, React is a JavaScript library that builds user interfaces. Blazor’s adoption depends on factors like familiarity with C# and .NET. While Blazor offers an alternative for .NET developers, React’s widespread use and extensive ecosystem make it unlikely to be entirely replaced. Both have their strengths, and their coexistence will likely continue to cater to different developer preferences and project requirements.