I’m a glutton for punishment, so I checked the “#2 heresy.” First, Dz 102 says infants are baptized for remission of sins. It doesn’t say anything about their ultimate salvation.
denzinger.patristica.net/#n100
In EV 99, St. John Paul II speaking of babies killed in the womb, says “To the same Father and his mercy you can with sure hope entrust your child.” Again, nothing about salvation.
vatican.va/holy_father/john_paul_ii/encyclicals/documents/hf_jp-ii_enc_25031995_evangelium-vitae_en.html
Anyway, St. Thomas Aquinas said such babies could indeed be saved. Will this website say he also was not a Catholic? In reply to the objection that since Baptism cannot reach into the womb but original sin can, then Adam’s sin is more powerful than Christ’s, St. Thomas responds:
newadvent.org/summa/4068.htm#article11
So this person is 0-2 with two blatant misleads…