I don't expect anything.

What gets me is the fact the subject comes up at all?
I've dated enough 'new' women and in my younger days, girls, and never once has dating experience ever been a subject for discussion.

Eventually, after we actually have a relationship, we talk about our romantic history a lil but never in an assessment, judgemental way.

Perhaps, and no I am not being prejudicial, it might be a cultural protection nuance? Perhaps the ones you talk with have been burned too many times in the past? If this is the actual reason, it means you must try that much harder to break the stereotype. Again, I'm not saying this is the case, just food for thought...

You seem like a nice person, worthy of knowing. You obviously have an education and can control yourself. Someone who has personal issues from the past may not be able to see the good you. Their sight is clouded with nightmares of others.

Your best course of action would be to cut the losses and move on to the next potential candidate. Using online dating sites are hit or miss most of the time. Sometimes even the possible positive results can turn out bad. I used multiple dating sites and screened hundreds of women, even dated a few, before my gf and I found each other here. Even that took almost two years.

There are a lot of no responses, a lot of near misses and some actual letdowns. Ya just gotta keep looking and trying if you really want to find someone. You also must search in the real world just as diligently.
Sometimes you need to adjust your preferences a lil.
Sometimes you gotta adjust your attitude a lil.
Sometimes you gotta look where you haven't considered looking.
Most of all, you gotta be patient and stay focused on the task at hand, despite those that try to tear you down.

Perhaps the response to queries about your dating experience should be met with a deferral. Just tell them "that's a discussion for another time, after you get to know me better". This way you are not lying and when you do talk about it and she already knows you as the man you are.

Try to remember:
If you make poor choices in life you get poor results from life.
If you make wise choices in life you get rich results from life.
Always - Choose Wisely