Earlier quoted context omitted.
The founder Joseph Smith had 14, 16, 17 year old brides. If it was allowed for Joseph Smith why should anyone else be different?
No reason at all. It was generally allowed in the U.S. Age of consent was typically 10 years old until 1885 https://discover-the-truth.com/2013/09/09/age-of-consent-in-... "After 1885, age of consent laws changed around the country, reaching 16 in New York in 1889 and 18 in 1895. Prior to these changes the age of consent in most places in the United States was 10 or 12 years." There's a very strong trend to criticize…
Whats more, looking at comparable relationships contemporary or even before Smith's time, let's say Sally Hemmings and Thomas Jefferson (15 and 45 respectively) in the late 18th century and you can clearly find plenty of condemnation of the age disparity between the two.
I'm sure there were others who were fine with men like Jefferson and Smith preying on teenagers, but it does not mean it was considered ok then.