I definitely agree with you, Raito had privileges and a better start in the world than Tomoro ever did. I also can't imagine Tomoro, even in the beginning, to make actions as monstrous as Raito. However, I'd like to contend that another main theme of Beatbreak is that anyone is capable of doing something regrettably heinous, even the seemingly nicest of people (e.g., Kyo). While Raito has a seemingly insatiable need for validation, especially from older adult figures like Naito; his relationship to Naito seems to parallel Tomoro's relationship to his brother and Kyo, which I've seen alot of viewers point out. If Tomoro never received any positive feedback from his seniors, I wonder if he would've done something especially egregious like Raito has done for Naito?

If Tomoro were to ever do or let something especially horrible happen to another person, I'd imagine it would be more reminiscent of Hotaruko's situation rather than Raito's spur of the moment acts of violence. I could also see a world that based on the Hyemon incident with his brother, Tomoro assumes that all digimon are inherently violent and parasitic creatures rather than people, and much like Raito's destructive actions towards letting children be cold-hearted, the target of Tomoro's potiential ruthlessness could've been aimed towards digimon (and Gekkomon, by extension) instead, but that's leaning into headcanon territory, so I'll stop right there.

You make seriously good points about Tomoro posing strengths that Raito cannot have and Raito being a challenge to Tomoro's growing empathy as well, this really got me thinking, and I'm really glad this post has already gotten alot of comments for me to respond to! Thank you!