If this is true, this bit does seem like it needs some tweaking:
$1:
The assessment of “excessive demand” is a cost assessment of the disability but not the individual. It ignores contributions of the individual and family to Canadian society;
The rest of the petition is less impressive including the bit where Jenny Kwan is your sponsor.
I'd rewrite your petition with less bafflegab if I were you. Otherwise we're all going to think this is just another sneaky trick to get us to finance the sick of the 3rd world.
But yeah, if some can show how they don't need or want Canada to finance their pre-existing conditions and can put it in writing that they won't demand our charity as a right once they're here, I'm with you. I don't see why we should hinder those exceptions.