Eh, I'm calling bullshit on this.
First off, Percy is barely on this shit most of time and generally most people find Percy polite, if not outright friendly. I don't, and people most people will agree, think Percy is a prime offender, much more the worst offender on this site in terms of arguments or behavior. You have this trick, which did with Fallowfox (who is the stereotype of British politeness) or anyone calls you out, where you like to style them as being the absolute worst person on this site ... despite you actually being banned and disciplined on this site.
We can argue about how much a disability being overweight is. Compared to Parkinson's or cerebral palsy, it is probably less a burden to deal with, but being frank, those on the higher functioning end of the autism spectrum might be more able people with the aforementioned disabilities as well. Disabilities can be relative and each type of disability carries its own struggles. (Also, I admit I've never been overweight, so I might not be treating this with the due sensitivity it deserves.)
That said, some jurisdictions here and even in Canada consider obesity a disability since you can become obese due to injury (if you sustain a debilitating injury and can't exercise, for example), birth defects, or disease (see
human adenovirus 36). Science has proven there are many factors lead to obesity that a good diet and exercise alone can't fix, though obviously everyone should be eating healthy and exercising.
Now where there might be some ambiguity about general disability and obesity, I don't think there is any question that here in the States, the QUILTBAG crowd is persecuted group, unambiguously. I've noticed you have a tendency to say the disabled face more trials and tribulations that queer folks and I don't know whether that is purely because you don't see a lot of discrimination against queer folks in Canada or just because you want to pit queer folks against the disabled while focusing on your struggles, but you constantly do it.
On the face of it, it is absurd to say to a queer American that "no one cares about sexuality" or that "there are laws against QUILTBAG discrimination, so they aren't systemically oppressed" because:
1.) It was only a couple of years ago the previous administration pushed a case through the courts to say that QUILTBAG Americans weren't covered by the Civil Rights Act and could be discriminated against in business and the workplace. To clarify, this would have allowed employers to fire QUILTBAG employees on the basis on of their identity and to discriminate against them in hiring process ... legally.
2.) There was a literal ban of transgender people in the military, which damaged thousands of servicemembers' careers.
3.)
If that wasn't serious enough for you, because I feel you'll blow off that off, there is this handy comprehensive list of how good queer folks had it here.
4.) There also the current campaign against queer folks in various states here, often lead by state governments, especially Florida, forbidding them being mentioned in school curriculum and restricting the rights of transgender kids.
So while you personally may never have faced discrimination for being queer (which is at best an anecdotal yardstick for discrimination), it's been a whole different ballgame for queer folks in the States. Laws are only as good as they are enforced and laws against discrimination can repealed or ignored by discriminatory authorities.
Furthermore, on more personal note to you, I remember you mentioned that a boss apparently derided you for your disability (you expressed pain going up a flight of stairs and he made some flip comment about it) and that you were allegedly terminated due to that disability. By your reasoning, since Canada has legal protections for disabled citizens, you can't possibly be systematically oppressed because surely laws on the books mean they are being observed to the letter and enforced vigorously. An asshole might say you need persevere despite your disability and make do.
But obviously that would be wrong, both morally and practically.