Earlier quoted context omitted.
Very unbiased. Only sampled people who were online and ostensibly only those who used Facebook. Since maybe ~60% of people use Facebook, I don't think the results speak for _all_ Canadians. If it did that's saying a lot for secondhand effects of social media platforms.
Not totally sure, but aren't people with extreme feelings more likely to answer a survey? Voluntary or nonresponse biases
This kind of discourse is annoying.
You don't get "points" for making some hypothetical claim. If you think there is something wrong with an analysis, demonstrate it. Isn't that what "pro-science" people do?