What you seem to be misunderstanding is that your whole process of nuking IPv6 is more work than studying the issue for a few minutes and then listening on both

What you seem to be misunderstanding is that your whole process of nuking IPv6 is more work than studying the issue for a few minutes and then listening on both protocols. Setting a service to listen on a port will use both IPv4 and IPv6 by default, and if yours isn’t means you’re probably already doing something wrong or also have other bugs.