Too Much time
It seems to me that sometimes employers are looking for people who fit inside a specific envelope of education, age and experience. If your career has not taken a similar path as other applicants you might be on the outside looking in.
Too much experience suggests that perhaps your intent is to hire on with a regional to work for six months and then leave for a better job once you have been 121 blessed. In contrast young pilot applicant with only 900 hours is going to be a faithful employee for many years.
Aside from that most legacy applicants come from known pools of experience like Navy, regional or fractional. If your background is outside of the norm then you might have a difficult time getting attention.
It takes a lot more than just meeting experience minimums to get anywhere in aviation.
Skyhigh