There are 2 kinds of sins: absolute and relative.
To give you examples, [using "bad thing" as substitute for sin]
Is robbing a bank a bad thing? Absolutely yes.
Is driving a car a bad thing? It is a relative yes. If you are 5 years old, yes it is bad. If you are 16 and have passed your drivers ed, got your license and insurance, then it is NOT a bad thing but a good thing.
So an absolute sin is something sinful for everyone at all times. A relative sin is something that may be sinful in some situations but not others.
Secular music IMO can be a relative sin. Certainly any songs that incite us to drug use, lust or violence are not good. But if you can hear them and not be swayed into sinful behavior, then I believe it is not a sin.
And no - the fact that you do not like certain mainstream christian acts is certainly understandable. They often fall short in their efforts. The underground indie christian stuff is often better. And over the last 30 years it seems the mainstream has gotten worse.
So back to your question: is it wrong or sinful to listen to secular music? IMO it is not; as long as it does not draw you away from the Lord or entice you into sinful behaviors and attitudes.