Mexican border-violator Miguel Mejias-Ramos said he slashed his two baby girls to death after he killed their mother — and didn’t have car seats to take them back to Mexico, outraged officials revealed as craven Queens dad Mejia-Ramos was arraigned on murder charges. Mejia-Ramos, 28, was expressionless as a judge ordered him held with no bail for the slaughter during a jealousy-fueled, five-knife rampage.“I was going to take them with me, but I didn’t have car seats,” the monster told cops. Originally claiming self-defense, Mejia-Ramos came clean while being flown back by Queens detectives. Mejia-Ramos has no known criminal history...