I think the only reason someone who likes dark theme would opt out of your dark mode is because it's not as nice/readable as your light theme, or vice-versa. Yo

I think the only reason someone who likes dark theme would opt out of your dark mode is because it's not as nice/readable as your light theme, or vice-versa. You should fix that instead. Once your dark mode support is perfect, or at least as good as your light theme, then the toggle serves no purpose.