I used to wonder why the Church seemed to prefer the celibate religious life to the married state and why there are so many religious saints and few married saints.:ehh:
After 20 years of marriage,and seeing my friends marriages and family life, I no longer wonder. :bluelite:
Marriage and family life is very complicated!

It doesn’t always bring out the best in us.
My understanding (settting aside some of the more extreme statements that you’ve pointed out for a moment), is that while Holy Matrimony and Holy Orders are both sacramental paths to holiness, Holy Orders is a more sure and direct path.
My married friends have come to the same understanding, and a priest friend of mine (who is very saintly) was recently saying that he realizes that he wouldn’t have been a good husband and father after watching how difficult it is with his siblings.
With a religious, it’s just you and God and your whole life is ordered towards service to God. It’s a very simple life—(NOT SAYING IT’S EASY!), but it is more tailor made to developing virtue, prayer life, corporeal and spiritual works of mercy…etc.
Married life, also gives ample opportunity to grow in virtue etc., but it is a more difficult path. This isn’t because sex is unholy or anything, but because you have to live in the world and be preoccupied by worldly things to a greater degree. Family relationships are very complicated and it’s very difficult to unleash ourselves psychologically from unconsciously repeating the same mistakes our parents made that were hardwired into our behavior. Practicing virtue behind closed doors in heated family situations is very difficult no matter how hard you try to do it right. It’s easy to get lax. Worldly cares continually crowd out thoughts of God and we have to keep putting him back at center again. Parenting is whole 'nother ball of wax.
Perhaps this is why both Jesus and St. Paul promoted the celibate life for the sake of the kingdom as the highest calling.
When I was looking into a lay society started by a priest for married couples, the priest explained why his apostolate required no mortifications for married couples unlike the religious members. He said that married couples are mortified in their daily life, with all the trials that come at them from kids, bills, taxes…etc. Religious live a more simple life which requires some added mortifications.
It seems to me that the Church follows the same principles throughout history, while *emphasizing *certain attributes of those principles to a greater or lesser degree in different ages. While the religious life is still very much a staple of the Church, Pope John Paul II made an effort to bring more emphasis to the married vocation. He beatified many married saints and his theology of the body gives a greater emphasis to the holiness of married sex.
God Bless!