There is no such thing as Perpetual Virginity of Mary

Let's start with what Catholics say on: 

https://udayton.edu/imri/mary/m/menstruation-and-mary.php

"But we do know dogmatically as Catholics that Mary would not have "bled" during her giving birth to Jesus. We know this from the dogma of Mary's Perpetual Virginity - before, after, and particularly during the birth of Jesus. It is an article of divine Catholic faith that Mary preserved her virginity—inviolate from any physical damage or destruction. This would mean, on a physical level that Mary's hymen remained intact. This can be a contentious issue for some, since we know that the hymen can be burst outside of sexual intercourse or giving birth and the girl would still be considered a virgin. But theologically, it is different for Mary because of her integral involvement with the Incarnation and Redemption worked by Jesus."

Yes, in the article they quote Leviticus, and I do below:

Lev 15:19  And if a woman have an issue, and her issue in her flesh be blood, she shall be put apart seven days: and whosoever toucheth her shall be unclean until the even. 
20  And every thing that she lieth upon in her separation shall be unclean: every thing also that she sitteth upon shall be unclean. 
21  And whosoever toucheth her bed shall wash his clothes, and bathe himself in water, and be unclean until the even. 
22  And whosoever toucheth any thing that she sat upon shall wash his clothes, and bathe himself in water, and be unclean until the even. 
23  And if it be on her bed, or on any thing whereon she sitteth, when he toucheth it, he shall be unclean until the even. 
24  And if any man lie with her at all, and her flowers be upon him, he shall be unclean seven days; and all the bed whereon he lieth shall be unclean. 
25  And if a woman have an issue of her blood many days out of the time of her separation, or if it run beyond the time of her separation; all the days of the issue of her uncleanness shall be as the days of her separation: she shall be unclean. 
26  Every bed whereon she lieth all the days of her issue shall be unto her as the bed of her separation: and whatsoever she sitteth upon shall be unclean, as the uncleanness of her separation. 
27  And whosoever toucheth those things shall be unclean, and shall wash his clothes, and bathe himself in water, and be unclean until the even. 
28  But if she be cleansed of her issue, then she shall number to herself seven days, and after that she shall be clean. 
29  And on the eighth day she shall take unto her two turtledoves, or two young pigeons, and bring them unto the priest, to the door of the tabernacle of the congregation. 
30  And the priest shall offer the one for a sin offering, and the other for a burnt offering; and the priest shall make an atonement for her before YHUH for the issue of her uncleanness.

Lev 12:1  And YHUH spake unto Moses, saying, 
2  Speak unto the children of Israel, saying, If a woman have conceived seed, and born a man child: then she shall be unclean seven days; according to the days of the separation for her infirmity shall she be unclean. 
3  And in the eighth day the flesh of his foreskin shall be circumcised. 
4  And she shall then continue in the blood of her purifying three and thirty days; she shall touch no hallowed thing, nor come into the sanctuary, until the days of her purifying be fulfilled.
. 
6  And when the days of her purifying are fulfilled, for a son, or for a daughter, she shall bring a lamb of the first year for a burnt offering, and a young pigeon, or a turtledove, for a sin offering, unto the door of the tabernacle of the congregation, unto the priest: 
7  Who shall offer it before YHUH, and make an atonement for her; and she shall be cleansed from the issue of her blood. This is the law for her that hath born a male or a female. 
8  And if she be not able to bring a lamb, then she shall bring two turtledoves, or two young pigeons; the one for the burnt offering, and the other for a sin offering: and the priest shall make an atonement for her, and she shall be clean.

The Catholic article makes every effort to explain it all away as not applying to Mariam (Mary).
How do they then explain the following?

Exo 13:12  That thou shalt set apart unto YHUH all that openeth the matrix, and every firstling that cometh of a beast which thou hast; the males shall be YHUH's.

Opening the matrix sounds destructive and bloody, don't you think?

Then Mariam (Mary) follows Mosaic law (given by YHUH) to the letter, acknowledging her time of uncleanness after having given birth to Yahushua in Luke, as follows:

Luk 2:21  And when eight days were accomplished for the circumcising of the child, his name was called YAHUSHUA, which was so named of the angel before he was conceived in the womb. 
2:22  And when the days of her purification according to the law of Moses were accomplished, they brought him to Jerusalem, to present him to YHUH; 
2:23  (As it is written in the law of YHUH, Every male that openeth the womb shall be set apart to YHUH;) 
2:24  And to offer a sacrifice according to that which is said in the law of YHUH, A pair of turtledoves, or two young pigeons.

Case closed.