Some statistics commonly thrown around are:

Divorce Rates: 44% https://www.cdc.gov/nchs/fastats/marriage-divorce.htm

Paternity Fraud: 30% in 1999 https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=200320040SB1030 (Paternity Fraud included because in past times children out of wed-lock would mean a wedding is soon to follow).

Alimony: 97% to women (380,000 people). 3% to men (12,000 people). https://www.divorcemag.com/articles/percentage-of-men-awarded-spousal-support-increasing

Pretty much just the questions in the title. No bias here. We all know there are going to be people raging on both sides of the coin no matter what.