i don't think that's a fair assessment of "fans of targeted browsers" at all...i used IE for years without a single security issue before switching to Firefox (with a MyIE2/Maxthon interim) ...and i still think FF is a better overall browsing experience (security et al.) than IE ever was...

i think it's IE stalwarts who cast aside any alternative to IE as beta/junk/etc who are the ones who "just won't listen" ... (see my cut-and-paste security issues from secunia above)...