~43% of the internet runs on WordPress[1] while ~75% of the internet uses jQuery[2], so even if you took out every website that used jQuery due to being built on WordPress, the number of websites using jQuery would be over six times higher than the number of sites built using react.

[1] - https://colorlib.com/wp/wordpress-statistics/

[2] - https://w3techs.com/technologies/overview/javascript_library