Do you want to continue doing front end work or cease doing it? Could you learn/master React and add that to your portfolio?

Instead of switching quickly, consider picking an array of skills to develop that complement where you want to end up, and reposition yourself from "front end programmer" to user interface developer with experience across multiple libraries.

Don't allow anyone to con you into a lower level role, leverage what your skill set is for at minimum a lateral move if not a promotion.