100% agree with you if you see it from that angle.
But the thing is most of the people who visit mazaars dont ask/expect the deceased Buzurg for direct help. They want a waseela. They believe that this Hasti is “alive” and that Allah listen to this Hasti more than those people.
Shirk for one, sawaab for other. When it comes to beliefs, good or bad, you can’t do anything about it.
Now it’s true that so much goes on on these mazaars now-a-days like drugs, child kidnappings, homeless and criminals staying there depending on how large and crowdy the mazaar is, so do consider these things as well.
So** Shay**, the short answer for your question would be it all depends on your beliefs and circumstances in which you want to visit such place. there is no right and wrong answer for this. some people go just because of the beauty or uniqueness of the place. imo any mazaar environment is not ideal for women but make sure you do accompany some adult males if you do visit.