There is a great deal of entropy in communications because words carry different meanings and are subject to misinterpretation. Humility can be a virtue when it describes that is unassuming, unpretentious or modest. It might have been kinder if you had messaged him, "What do you mean by humble?" I too am sometimes guilty of jumping to conclusions.
One of my favorite quotations: "What we've got here is a failure to communicate." - The Captain

The part of humility I like is not being a braggart. After that it can go suck royal purple donkey wang.

There are a lot of issues with online dating. First off finding quality, non divas. Maybe humble wasn't the best word, and finding the perfect words for who you are writing to is impossible, but it is not an insulting word. He could have been trying not to say "not a diva". Give him a break on that word, there are far worse out there.

He can walk behind you and carry your bags.

Probably a 99% chance that's a foreign scammer.

Ask them if they like Gloria Allred then tell them you are a cross between Marget Thatcher and Nancy Grace and that you do not date enslavers. Just a hypothetical thought you might like the humor in that.

I think if it was a stranger contacting me, I'd probably think what you thought.

But, for me personally I think humility - in both men and women - is an impressive trait. Especially in the presence of obvious talent or intellect.

Now if I got to know someone first, and noticed that they were very talented at something, or if they possessed great academic and/or social intelligence, but still maintained an "aw shucks" attitude, I would think it appropriate to comment on their humility.

What I think is that he sounds dangerous (or into BDSM in which case he should be up front about it.) Domestic violence dangerous, not edgy, bad-boy dangerous.
He may not be, but then he ought to chose his language with more care.

Asking for someone to judge themselves to be humble beings, and then expect them to, in essence, shout out "'I'm humble. Over here. See me being humble." Just strikes me as sooo off. No way anyone can win.

on your knees

Do cis, hetero men ever read women's profiles?
Usually, no.
That's why they typically don't write their own profiles since they usually start hitting on the most attractive women they can find, by photo alone.

That sounds "religious" to me also. Even without the overtones of religion, I doubt I would be interested in a humble woman.