These Muslims are labeling the Indian Constitution as blasphemous because it doesn’t permit pedophilia. What’s wrong with stating that any 54-year-old man having intercourse with a 6-year-old girl is a pedophile and criminal ? This is in line with the Indian Constitution and the laws of many countries, including several Muslim-majority nations.
1400 years ago people all over the world used to get their daughters/sons married at a younger age, people were poor and tribal, in the west girls aged 2 3 used to get married, in India up to 1949 it was allowed for girls to marry at 14 years of age and then increased to 15, Rome used to have minimum age for marriage 12.
Holy Prophet Peace be upon him stopped consummation of marriage till the girl reached puberty, same with boys, this was a revolutionary step, he also forbade marrying mothers, sisters, or 2 brothers marrying same woman, as the world progressed the marriage age as been increased and now it's around 18 years of age. Islam has no issue with this as long as people who reach puberty are happy with this and stay away from sexual relations, porn, masturbation.
Slavery was allowed 1400 years ago, but Prophet peace be upon him started with giving them rights and freedom, this was a revolutionary step which lead to abolition of slavery and mistreatment.
Rather than spread hate, it's better to know your own history, in Hindu culture, women committed satti if husband died, the Mughal Muslims banned this practise, the list can continue until we all get banned from PDF.