The solution is wrong even if the premise is right
Christian men should not listen to the "gurus" of the Manosphere. Marriage is a wonderful gift from God.
There is no benefit to getting married, according to some in the "Manosphere," because the system is biased against men. A woman can get a divorce whenever she wants thanks to no-fault divorce "reforms" in the 1970s and early 1980s, and the man has no recourse to protect the marriage. She will take the children because the family courts are biased in favor of women. She will take half or more of all of his wealth. A man who has taken the "red pill" and sees feminism for what it is would be a fool to get married and expose himself to that risk.
I could address the premises stated above themselves, but I will not do that for the purposes of this post. For the sake of argument, I am going to assume that all of these premises about divorce made by the "red pill" movement are correct. The solution of avoiding marriage is still wrong, especially for Christians.
The Bible sets up marriage as a picture of Christ's union with the Church. God created woman because it was not good for a man to be alone. The Bible assumes men will be married in the Apostle Paul's letter to Titus, which is why Paul says church leaders should be the husband of one wife. Paul also urges marriage for those lacking the gift of celibacy, as it is better to marry than to burn. Proverbs 30:18-19 describes the way of a man with a maid as "too wonderful for me," and the Lord Jesus Christ confirms the beauty of the one-flesh union in the Gospels.
Even assuming the "red pill" teachings about the feminist corruption of the legal system are all true, what is the answer for Christian men? It is actually very simple, and is the same answer that we have for every other aspect of the Christian life: We are to live by faith. We are to trust God and obey Him. This means, if possible, to get married to a Christian woman and to follow and obey God. It is better to be an obedient "fool" who lives by faith than a "wise" man who has taken the "red pill" about the dangers of feminism. Trust God, and acknowledge Him in everything you do. Then He will direct your paths, as He promises in Proverbs 3:5-6.