They have no trouble getting sex: true - but not always from men they believe are their equals or better - sometimes yes and those are the ones that they cannot garner commitment from. Which then prompts them to say “there are no quality men left” which truly should be “there are no men (who I consider to be acceptable) left who will commit to me.”
The women who say that “there are no quality men left” are typically 30+, but more often 35+.
As a 39 year old man who hasn't been able to get someone substantially younger but has been able to get slightly younger women, I've been dealing with the 30 somethings for a number of years now.
The typical 35 year old today isn't the 35 year old of even 10 or 15 years ago.
A 35 year old today was born in 1987, which puts her in the middle of the Millennial generation. A woman born in 1987 grew up in the era of tech. She had a cell phone while in high school. Facebook/MySpace were around when she was in college if she went to college. The first iPhone hit the market when she was 20. Instagram launched in her mid-20s as did Tinder.
A 35 year old woman today is much different than a 35 year old of her mother's generation. Let's assume in both scenarios that the women in these examples lived in a metro area of 500,000+ people. If a woman was 35 and single in 1990 (making her a classic Boomer female), she would have had to work very hard to generate a fraction of the prospects a single 35 year old would have now. A 35 year old in 1990 would have had to be at bars or social events 4-5 nights a week in order to find dates. Only a childless 35 year old would have been able to do that. In 1990, a 35 year old was considered expiring to expired goods. She would have been expiring a childless woman, or expired as a single mom (there were fewer single moms in 1990, but they were around). There wasn't much of a market for a 35 year old in 1990 because more 35-40 year olds were married then, though divorce was common enough by then. A 35 year old, childless woman who went out to bars or social events 4-5 nights a week in 1990 might field 5-7 approaches a week.
Now, a childless 35 year old woman might struggle to get attention in the real world. Her real world approaches would be comparable to her 1990 equivalent. However, the 35 year old of today has Tinder, Bumble, Hinge, Instagram, Twitter, Facebook, and LinkedIn at her disposal to generate prospects to supplement her real life activities. In fact, between those 7 platforms, she barely needs to needs to be active at all in real life. Whereas a 35 year old woman in 1990 working hard would generate 5-7 approaches in a week, a 35 year old today using some combination of the 7 platforms above has 200-400 men approaching her per week.
There's enough quality in those 200-400 options. Also, there are plenty of men within those 200-400 options per week that show up who will commit.
If a woman wonders where the quality men have gone, remind her to take a look at her swipe queue and swipe app inbox messages. She has multiple men who will commit to her in there. Remember that the typical guy in his 30s/40s is a vagina beggar who is ready to commit to any woman who will touch his penis regularly.
If a woman is having problems getting a committment, it is because she's too fussy in relation to her own sexual market place value. In other words, she's a 5.5 who expects a committment from a 8. Not happening.