Sure, if Jesus, Mary, Joseph and a choir of angels show up, tell the soul "Hey, if you'd like, we'll have someone down on earth baptize you by proxy!" and the soul wants it, then sure, it's not a forced conversion. But if the soul responds "No thanks", the baptism by proxy still occurs down on earth because you have no way of knowing the soul's response! Thus, you're going against the will of the soul and baptizing him anyway DESPITE his rejection. He may not go to Heaven despite your baptism because he hasn't accepted the baptism in his heart, but YOU still forced him to convert in principle. It's exactly the same as Muslims forcing captives to convert. The captive goes through the motions of the ritual whether they want to be Muslim or not, because they have no choice. They may have the option to not accept Allah in their hearts, but they still were thrust through a forced conversion process. That's wrong.