"Alternately-abled?" Cheesh! Sorry, but I gotta add that to my slap-upside-the-head list. As a walker-dependent stroke survivor, my favorite fantasy is wheeling up to someone loudly saying "I am not handicapped! I am handi-capable!" and slapping them up aside the head for being PC jerks. Gotta add "That man isn't disabled, he's alternately abled" to my list. I can't think of a single alternate strength that comes with the package - I won't be running again, or walking without an aid, or walking at all (with or without an aid) on open ground or rough pavement. I won't be sitting in anything but a rigid chair (sofas? floor? Only if there are 2 or 3 really big guys to help me stand, so forget that). I won't be getting into restaurant booths, or onto escalators or buses, I ... oh, heck, face it, I'm disabled.
I suppose it's a matter of personal preference on the part of the "alternately abled" person, but sometimes being too PC about it can also dehumanize or objectify the person. My long-ago first love was blind from birth, and had little patience with being "handled with [verbal] kid gloves". She and the dog would go anywhere and do anything (picture her and her guide dog at a nude beach ... nuff said?) and her whole office (legal transcribers for a Federal agency, all of them blind) often merrily referred to themselves as a "bunch of blinks". But she did have the occasional problem with someone who just couldn't 'get' that guide dogs can go anywhere - she carried a copy of the law permitting it with her at all times, and also carried an arsenal of choice language for those who still didn't believe her.
There are a blessed few times when a handicap can suddenly turn from 'disability' to advantage: I hardly ever go back to a restaurant without being shown to 'my favorite table' (I do like being remembered, and believe me I tip accordingly). Just yesterday I was slogging through Home Depot using their grocery-style cart in place of the walker (much easier on my back, but I still can't hide the limpy right leg). I sent my son to get the items he wanted to find, and I was looking all over (CRUD MONKEYS! all over) the lumber department looking for a wooden stair rail - son comes back with his multiple finds and he doesn't see any rails either. I asked him to go ask someone - 5 minutes later he comes back and says "it's on Aisle 21". Of course the employee wouldn't come and show him. Nope, not on Aisle 21. Or 22 or 20 (for the third time). I said "I'll go ask." He said "what are you going to do that I couldn't do?" I said "play the handicapped card. Just hang back behind me, but stay close, watch and learn." First person I asked fell all over himself leading me ... well, not straight to it (turned out he didn't know either but darn it he was gonna try) and we made another full circuit of the store, and finally he found another employee who did know. My strapping 21-year-old son tagging along 5 feet behind me? Might as well have been invisible. I didn't have to blink my eyes and ask for special help because I'm so bleedin' special, but people are often extra-gracious when the same folks had been surly or oblivious moments before. Of course I'm grateful and I let them know it.
Sidebar: the same kind Home Depot employee asked me if I wouldn't be happier in a motorized courtesy cart. I had to tell him that, when I was first stricken, I tried them - 90% of the time, I went to all the trouble to get a cart, get a key, and install myself, and ... dead battery. Gave that up.