Whenever there are attempts to introduce proportional representation in North America, proponents of FPTP claim that it could contribute to the rise of far-right parties. For example, the "[Vote No to Pro Rep](https://nobcprorep.ca/)" website states that:

> 
> Far-right extremists calling the shots in the BC Legislature? No thanks. That’s not my British Columbia – and with Proportional Representation, that will be the new normal. I’m voting NO to fringe parties causing chaos and holding the balance of power this fall.
> 
> 
> 

Is this a correct statement? Have there been studies on the effect of FPTP countries/regions switching to proportional representation?