Yet there is ZERO Biblical basis for the belief that Mary DIDN’T have more children. Or that the brothers and sisters that Matthew clearly reference - calling James and Joses DIRECTLY the sons of Mary (in Mt 27:56) - are from a previous marriage of Joseph.
The belief that Mary was ever-virgin is simply based on tradition - not Scripture. That’s fine, if you want to believe it. But you simply cannot state - as you have - that there are NO suggestions that Mary had other children. To do so is to literally deny the Word of God. See the link in 143 - it’s quite detailed and very enlightening, and at least shows there is a VERY strong suggestion that Jesus had brothers and sisters.
This is the "other" Mary, not the Blessed Virgin Mary.