Proportional representation is necessary for every vote to count. The proportion of votes for a party should be reflected in the proportion of seats that result. That is only fair. *
There are different kinds of PR. Whatever is the simplest would work best I think.
If PR is indicated by the survey, I request that you go ahead and try it for a couple of years.. THEN ask people what they think, whether it should continue. A referendum would be subject to all sorts of advertising, some misleading. Whoever has the most money would be likely to have their choice prevail. But if everyone sees PR in action, then they would choose our future system from actual knowledge.
The countries with fair voting systems tend to have the most equitable societies, a smaller gap between rich and poor. They tend to avoid extremes of poverty and wealth.
*Our current system was set up in Britain by the aristocracy, whose interests were not in the general populace having full fair say in governance.
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