I don’t disagree that some people think in extremist ways, but if we’re still talking about the law, it’s the law that matters, not extremist opinions.
https://www.parl.ca/LegisInfo/BillDetails.aspx?Language=E&billId=10686845
Go ahead and have a bonanza with that. 
If it were merely ineffective, there wouldn’t be so much concern. The trouble is that it can be damaging.
The kind that’s definitely not being banned is defined above.
The kind that’s in the process of being banned has been reported to come in more than one flavor. Here’s an example:
Tl/dl: Her parents take her to a session run by church people, basically an exorcism, and they use both psychological/theological and physical means to try to banish the Demon of Perversion from her. One of them concedes that even if they succeed, the D of P might still come back later, again and again. 
Other versions can be found on the interwebs, I’m sure.