You can't uninstall Safari from iOS. In fact you can't even browse the web without it as Apple prohibits any other browsing engine (Chrome, FF, etc, are using WKWebView).
I don't know the numbers but I imagine there are more iOS devices now than there were Windows PCs back in the 90s.
I don't know the numbers but I imagine there are more iOS devices now than there were Windows PCs back in the 90s.