Do RJs hurt the major airlines?

If you answered yes...then please answer this...

1. Why don't you guys try to get all the jets at mainline?

2. Refuse to hire RJ pilots?

3. Start hiring T-Prop and 135 guys instead of all the former 250 hour RJ wonder wings?

4. Require 1,000 hours of PIC time in airplanes as a CFI or 135 single pilot? (This should make the RJ operators force pay up to attract more experienced pilots meaning they couldnt just out cheap the majors. Nobody would want to run straight to an RJ if you couldnt go to the majors? It might put things in perspective, maybe?)

Maybe these ideas wouldn't work but I just wanna know what you all think.