Dude, I wouldn't lose any sleep over this. These guys aren't going into HR to rip up resumes. Only a bunch of nerds who still live at home and take their little regional way too seriously would do something like that.
They may not agree with what you are saying but you are entitled to your opinion. Don't let them bully you with threats of ripping up your application or bad mouthing you to HR. Keep building your hours and don't just apply to the regionals. I've flown on the -200 with civilian guys who never set foot in a CRJ.
