Why does public health care fit the criteria to be considered an issue?

I need 12 examples so a little help would be nice! Thanks so much to whoever helps. I really need it! By the way, by public health care I mean Canadian health care. So like, free health care but higher taxes.

health care?

if my cousin(canadian) marries her american bf will she lose her health care coverage here permanently? and how would marriage affect her canadian status? a long distance relationship is difficult but before she agrees to move there she wants to know how her canadian health care would be affected. The other option is for him to move here, but he has strong family ties. So..say she starts with a temporary work visa.. what are the guidelines in regards to coverage? *we canadians hear such horror stories about U.S citizens not having enough money to get needed medical assistance*