On TRP marriage is considered a death sentence for men because of high divorce rates and financial ruin. But if you're really a redpilled alpha, your concern should only be about the opportunity cost. What you give up to be married.

Divorce rates are ~50%. But once you filter for things that any successful man should be in a LTR such as college level education, financial independence, first marriage, no previous kids, mental illness, being over 25 years old rather than in teens, etc etc the divorce rate plummets to very very low levels.

Also, women don't want to be divorced. The highest status among women are the ones married to successful, good looking men who treat them well. If you are working on your life, career, fitness etc throughout your life in the way TRP says. Women will likewise put effort to make sure it works. Becoming a single mum is a very bad outcome for a woman.

The financial penalties are overstated too. Men are hurt when either They were rich prior to marrying (which most men arent) or they married a financially dependent woman (which you can/should screen for). If you marry, cohabitat with a woman, use her income to increase your financial leverage and gain reasonable assets, of course they will be split in a divorce because you wouldn't have been able to accumulate as much if you were on your own. This is not unfair, nor unjust

If you are an attractive, successful guy. The case for not getting married has nothing to do with fear of what will happen later. The case for not getting married is what you give up to create a family. The cost of starting a family and being married is you have to give up dating and a varied sexual life. This is massive cost and its purely up to the individual if it is worth it. Successful men will normally want and have both, but they know they can't have them both at the same time.