In college, I had a fellow student with a similar condition. Although he’d often use a wheelchair to get around, it was not at all unusual to see him using his arms to walk around campus.

In multiple occasions, I saw him do a takedown tackle of another student and basically wipe the ground with him. He didn’t even look completely muscular - although he did have really good definition on some of them - but he was so damn strong overall just from the way he got around that he’d just thrash them.

Plus, there’s no way to socially come out as winning a fight with a person who has no legs. There’s no way not to lose that fight, it’s just bad versus worse.