Using tools like GitHub Copilot can indeed make development tasks more efficient and assist developers in writing code more quickly. However, it's unlikely that developers, including full-stack React developers, will become jobless due to such tools. Here's why:

**Still Need Human Judgment: **While AI-driven tools like Copilot can assist with writing code, they lack the ability to make critical design decisions, evaluate complex business logic, or understand the specific needs of a project. Human developers provide valuable judgment, creativity, and problem-solving skills that AI tools cannot replace.

**Code Quality and Security: **Ensuring code quality and security are crucial aspects of software development. Human developers are responsible for reviewing and maintaining code quality, identifying vulnerabilities, and making architectural decisions that go beyond the scope of code generation tools.

Project-Specific Knowledge: Every project and organization has unique requirements and constraints. Human developers bring project-specific knowledge, domain expertise, and an understanding of the business context to their work, which AI tools do not possess.

Continuous Learning: The field of software development is constantly evolving. Developers need to adapt to new technologies, best practices, and emerging trends. AI tools can assist in this learning process, but developers are still essential for making informed decisions and staying up-to-date.

Collaboration and Communication: Collaboration, communication, and teamwork are vital in software development. Developers need to work closely with colleagues, stakeholders, and clients, which requires a range of soft skills that AI lacks.

AI as a Tool: AI and code generation tools should be seen as tools that enhance a developer's capabilities rather than as replacements. Developers can leverage these tools to streamline their work, increase productivity, and focus on higher-level tasks.

In summary, while AI tools like GitHub Copilot are valuable for developers and can help automate certain aspects of coding, they do not eliminate the need for skilled human developers. The role of a developer involves much more than just writing code, and the expertise and judgment that developers bring to projects remain indispensable. Developers who continue to learn, adapt, and expand their skill sets will remain valuable contributors to the software development industry.